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Showing content with the highest reputation since 29/01/19 in all areas

  1. 53 points
    Hi all, this has been a tough slog. Starting in August i intended to just shoot Barnard 150 and well i just kept going. I really have no idea how you guys with mono cameras manage mosaics, hats off. Shot over 9 nights and a total of 31 hrs in 150 second subs. Esprit 100, Zwo 071 pro, mounted on an AzEq6 Captured using SGPro, stacked in APP. Processed in APP, PI and PS. Hope you like it. Richard.
  2. 39 points
    Hi all, one of my Mercury transit image's has made both the British Astronomical Association's December journal and the Mercury and Venus section news letter. Really chuffed, never made print before, lol.
  3. 39 points
    Back in 2008 i decided to purchase my first large aperture refractor, and at the time back then had my heart set on a TEC140 from the US after reading the glowing reviews over on the CN forum. They were a premium price, (too much in fact) and with no UK dealers around then i decided against importing one privately. I opted for a William Optics FLT132 (one of the early models) and it served me very well, and despite a few niggles, it provided me with some memorable views. Fast forward 10 years, and is often the case in this hobby i had quietly amassed 6 telescopes and various accessories, some bought second hand, which weren't getting a whole lot of use. I decided i'd put my name down for the scope i'd always wanted, and figured i could raise a good proportion of the funds needed for the TEC by having a clearout. I sold off 5 scopes, electing to keep just my OO 12" Dobsonian : (My WO 132, My second hand WO FLT 98, my 70mm F5 astrograph, my C9.25 and my used Meade 6" SCT all went to new homes) I also sold off all my 2" eyepieces (i was sorry to say goodbye to the 31 Nagler) a Paracorr, a pair of binocs, and a few other miscellaneous bits and bobs. Once the sales were completed, i'd raised nearly two thirds of the funds needed for the TEC, so with some savings, i hit the 'buy' button and forwarded my deposit. Towards the end of 2017, TEC announced they were discontinuing the 'ED' designed 140mm after producing over 750 units in 15 years - due to the scarcity of the FPL53 blanks in that size. Yuri Petrunin, CEO at TEC, opted to switch the design to Fluorite, which was already being used in their larger 160mm (and above) refractors. The changeover, together with a few production delays, and an already full order book for the old design, made the normal 6 month wait time rather longer..... I was actually promised the scope 6 months ago, which i thought a little optimistic, and then it all went a bit quiet. I wasn't too worried, it just gave me the extra time needed to save up my pennies. When Rupert, from Astrograph, got in touch at the end of August to say the scope had arrived, a full 13 months had elapsed since i put my initial order and deposit in place. As far as i know, i'm the first customer in the UK to receive one. While i'm here, i must say that despite the long wait, i've had excellent service from Rupert. He's been in touch regularly, and kept me up to speed all the way. I've brought from him before, and its always been a pleasure to buy from him. He even delivers the scopes personally himself. He spent an hour and a half with me, showed me the scope, and how to set it up for imaging, and we had a good natter over a cup of coffee about all things astro. The scope itself, looks pretty similar to my old FLT132. Its the same F7, a very slightly larger 140mm aperture at 980mm focal length. It even has the same focuser. It actually feels a tad lighter to me, maybe thats the lens design or possibly a thinner tube ? The suppled case is a lot smaller than my WO case which had wheels and weighed a ton, and is a much lower profile size, making transportation a whole lot easier. This one with scope inside weighs around 15kg i think, compared to the hernia inducing 22kg of the old scope. I opted for a carry handle and extra dovetail for future imaging, and also purchased the optional TEC 0.9x corrector which is a sizeable chunk of glass in its own right. One of the main reasons why i went for this particular scope is its design. Its an oil spaced triplet with a centre CaF2 Fluorite element. With only 2 glass to air surfaces (rather than the 6 in air spaces designs) cool down times are significantly reduced. I'm let to believe the scope will perform to its full potential in as little as 45 mins which is a big plus for me. A big, big plus. Its already had its first light, a daytime session this afternoon to check focusing with the binoviewer. Theres no issues there : i managed focus comfortably with no corrector in place with a full 18mm back focus remaining on the Feathertouch. Daytime views of distant objects looked rather fine, with treetops in particular very sharply defined against the blue sky. A blue sky ???? Its clear ?? Isn't the weather normally dire when a new scope arrives ? Well not this time for a change..... Thanks for reading.
  4. 35 points
    I believe, as the title states, this is my best capture of the beautiful rosette nebula. The nebula in Monoceros is approximately 5200 light years away The Rosette nebula and the open cluster NGC 2244 are about 130ly in diameter, about 5 times the size of a full moon. I sent this image to my brother who doesn’t really have any interest in astronomy and he replied... ”wow! Is that where god lives!” Although I am pleased with this image, there are a few points that I would like to improve on, mainly the clarity and colour of the stars, they are a bit bloated and were magenta at the end of integration so I ended up just desaturating them. The nebula was low in the sky when I started imaging and there was a wind so I lost a few subs and the sii wasn’t as sharp as I would have liked. it’s 17.5 hours in total, 5.5 hours Sii and Oiii and 6.5 hours Ha, all 30min subs shot over moonless nights with a revelation Astro ed100 f6 doublet with an atik 460ex and astrodon 5nm filters captured with Artemis capture, calibrated and integrated with APP than transferred to ps6 where I basically tried loads of things that I probably couldn’t reproduce in the same order again!! (Need to start keeping notes!) It’s a mixture of SHO with an HSO added in Lum, just a bit. Anyway, thanks for looking I hope you like it. Bryan
  5. 35 points
    Interesting day. Started off grey and overcast, having rained over night. Sky cleared around 10am and was glorious for a couple of hours. 25 past 12 clouds pile in and my phone pings as raintoday app tells me there is rain on the way! Despite this I setup anyway in an unusual show of optimism on my part but this time it paid off. I managed to evade the shower using a combination of tarps and a quick dive into the shed for a few minutes and in between the clouds, wind and rain I managed 9 captures across white light and Ca-K with 2 different scopes! Of the 9 I have managed to stack 4, the other 5 captures include clouds, trees and other paraphernalia that is probably causing the difficulty. I will make further attempts to stack these later as neither of my white light full disks stacked which is a little disappointing. First up the Ca-K full disk, taken with the AR102xs @ native 500mm focal length so I could get the full disk in one capture This one was taken with the Evostar @1000mm focal length Then on to white light, both of these taken with the Evostar and Revelation 2.5x barlow for 2500mm focal length. They are just 21 minutes apart but it was a case of get what you can today!
  6. 32 points
    Very happy with it! Wish the sky were clear, but as we all know, when we buy astro equipment, it's cloudy! Argh! The telescope was collected from David Lukehurst at noon and then we travelled back to Cambridge. John Nichol primary mirror: 37mm thickness, Suprax. Hilux coated. Optics 1/8 PV wavefront 1/27 wave RMS. Strehl .95. Secondary mirror: 62mm MA. Here a few photos:
  7. 32 points
    Another one from an enjoyable fortnight with our guest Paul Kummer, though this uses a previous dataset as well. The increase in data does allow some little advantages to be teased out even though the first set was pretty good. Here we have around 7 hours of luminance and three hours per colour. There's no NB in this. It's full size here with the 0.9"PP of the TEC/Atik 460 used for luminance and cropped heavily. Dual TEC140, Mesu 200, Atik 460, Moravian 8300. Rig co-owned by myself, Tom O'Donoghue and Mr and Mrs Gnomus. Olly
  8. 32 points
    A while back I posted a Bubble in HaOIIIRGB. When our present guests decided to employ the dual TEC 140 on this target I added new data, viz: RGB 1 hour per colour up to 3 hours per colour. The new data had better seeing, hence smaller stars, a big help. 5 hours of Lum. A mixed blessing because L stars tend to be large, but I applied the L over the Bubble to enhance details. Ha went from 6 hours to 11, the new data being from the Gnomus' 5nm Astrodon. The original was Baader 7nm. The 5nm is more contrasty and has smaller stars but I wasn't able to extract much more detail. I think we're limited here by seeing and optical resolution. OIII from 1.2 hours to 6.2. This brought more small details and colour separation within the Bubble itself. To be honest, you'd have to be an astrophotographer to notice much improvement - but we are astrophotographers! This is a crop but at full resolution. Olly
  9. 31 points
    I mentioned in a previous post that my 2nd favorite target was Thor's Helmet. I have done it with FSQ106 but the FSQ130 allowed me to improve (in my opinion) on the detail I could pull out. I have seen some fantastic & detailed images of Thor's Helmet with quite large scopes - but I am extremely happy with what I managed with a 5" refractor. Again - not my most recent image - but 1st time showing it here on SGL. This with FSQ130 & FLI 6120 camera: Total 15 Hours: Ha, OIII, R, G, B.
  10. 31 points
    Its been a while since I've posted... so I thought it was about time. M27 The Dumbbell Nebula showing its outer shell. Imaged with the William Optics 132 and an FLI ML-8300 in Ha, O3 and RGB and cropped in nice and close. Exposure times were 6hours of Ha, 6hours of O3 and 1 hour each In RGB total of 15hours. Thanks for looking
  11. 29 points
    Here's my 2nd image of 2020, mostly captured later on the same recent run of clear nights that I was imaging IC342, though I did capture the Ha earlier in Dec when the Moon was up. The image comprises L=21x600s; Ha=9x900s; RGB(each)=24x300s, all captured through my C14 XLT plus Optec x0.67 telecompressor, with my QSI583wsg-5 camera using Astronomic filters . I would have liked more Ha, but since the forecast for the next few days is not good, I thought I'd take a look at what I already had, so here it is... Thanks for looking.
  12. 28 points
    Just had the BEST luck taking a photo!
  13. 27 points
    The beauty of having a 14" Sumerian Alkaid is that it fits in the boot of the car, even with everything needed for a week away with the family, without even being noticed! I packed the 72mm TS and also the Heritage 130P too as it did not take up much room, but so far have only used the 14" and 72mm. I packed the Airport accelerator with a decent range of kit, the 72mm goes in there easily, but this is the full list. TS72mm Baader Zeiss Prism 30mm ES 82 degree 20mm APM 100 degree 24mm Panoptic 12.5mm Docter 84 degree 3 to 6mm Nag Zoom Various BGOs to fill any gaps 6x30 finder Rigel Quickfinder SQM-L Lumicon UHC and OIII 2" filters Plus a few other bits and bobs. It was all I needed for either scope, I had the Ercole and Gitzo separately to take the refractor. I did a quick web search and found a place within 20 mins of where we are staying, near Manorbier which looked very promising, better than mag 21 predicted and with a sea horizon. I negotiated a one night pass for the week with my dear lady, and despite the poor weather during the day the satellite images and Clear Outside promised a very good clear spell from around 8 until 1 or 2am so I played my joker and plumped for last night! I was hoping that the rain would have washed the skies clean and left good transparency. I arrived at the site soon after 8, with the sun low in the West. I had a quick recce, and found a couple of likely places; the best one occupied by three ladies having a sunset picnic, so I pottered around until they left and then started to setup. I did not want too much kit out at once, so opted for the 14" which went together relatively easily. Collimation was a bit of a challenge; the compact design requires the secondary to be removed every time but with my collimating eyepiece (which has concentric circles to make aligning the secondary easier. EDIT found the link to it here https://www.teleskop-express.de/shop/product_info.php/language/en/info/p5506_TS-Concenter-2--colimation-eyepiece-for-Newtonian-Telescopes.html) and a laser I soon got there. I refined it with a star test and whilst it was not perfect it was good enough for what I was after. I did find a problem in that at very low altitudes the mirror was flopping forward a little, giving very poor views obviously. I need to have a look at the clips which seem to be set much too far from the surface, but that is a job for home not at the edge of a cliff . While I was collimating the scope, two local Special Constables arrived and came up for a chat. They had been debating what the scope was, with a lawnmower being one suggestion . We had a chat about what I was going to look at and about the scope. They reassured me that it was a relatively safe place which put my mind at rest. From messages I sent to Gavstar and PeterW, I can see that it was mag 20.5 at 21.45 and then 21.16 by 22.15. That was as good as it got, but still close to the 21.5 prediction. I took a variety of readings and all were over mag 21 even down relatively low over the sea. The biggest negative of the night was the bank of low cloud on the horizon which didn't really shift, and obscured the best of the objects down in Sagitarius. Perhaps on this occasion the Mewlon mounted on the Ercole would have been a better bet, but there were still plenty of higher targets to go after. Once fully dark, M31 was easily naked eye and looked large! The Double Cluster was also obvious, and I even got hints of M13, so these were decent skies. Early on I picked up M57 and M27. The latter I'm always amazed by in the larger scope as it looks more like a large oval with the outer reaches easily visible. I tried M13 at the same time and whilst good, I knew it would get better and indeed it did. Resolving right into the core once it was properly dark, with the Propeller showing clearly. M92 looked pretty good too, smaller obviously but with it's own merits. M15 and M22 were others viewed, although M22 was tricky due to the low altitude it is a lovely sight. The Double Cluster was pretty impressive, so many stars, although my preference is still a good refractor view. M11 was stunning, it's so much better at higher power under a dark sky, lovely Vs of stars with the mag 8.1 HD174512 shining brightly amongst all the rest. Gerry had challenged me to find NGC40, so I spent a bit of time hunting that one down and eventually found it. Quite a tricky one, and small at 0.6 x 0.6 arc mins and mag 10.9. It seemed to have a brighter centre and dimmer halo around it but hard to pick up any detail. M31 looked huge in the field of view of the 30mm ES, M32 was small fuzzy ball, and M110 an oval glow, clearly a galaxy. Both just about fitted into the field of view together. This actually turned into a night of few objects but giving plenty of time to them. The two being my favourites the Veil and North America nebula. I'm not sure why, but somehow I find starhopping much relaxing with a refractor on an alt AZ mount than a dob, so I end up sticking to familiar territory. Anyhow, that was no hardship as these two targets were extremely rewarding. Thanks to John's recent post about Revealing the Veil, I had the map to refer to. I did my best to keep my dark adaptation by closing my left eye when looking at my dimmed phone! It worked very well. So, on the Veil I used the 30mm and 20mm eye pieces. The 30mm allowed me to view larger sections, easier to put in context and the 20mm gave that bit more detail. The Lumicon OIII was as good as ever, and it is not an exaggeration to say these were the best views I've ever had of these lovely objects. The combination of good transparency, dark skies and decent aperture is one I've not managed to get altogether before in the Veil. I started, as usual at 52 Cygni with the Witch's Broom sweeping past it with its kink just before the star and found that the almost 3D tubular effect was beginning to be visible. Moving down to the brush end of the broomstick the split in the end was very evident, and also the fainter nebulosity to the East of this. Beyond the end of the broom, there was plenty going on in the region towards C and D on John's chart, it was a little tricky to identify discrete elements to it but lots of faint stuff there. Moving to Pickering's Wisp, this was as clear as I've seen it, with good extension of the wider end of the triangle. The part marked E was clearly separated too. I then followed 'The Thin Thread' all the way across to where it effectively joined up with the areas C and D, something I've never done before. Moving past NGCs 6974 and 6979 and across to the brighter Eastern Veil, sweeping down this revealed some structure, and the very evident two hooks where the labels NGC6995 and IC1340 are on the diagram although I'm not sure they refer to these specifically. There was nebulosity beyond this, and the little knot marked H was visible too. Overall I spent a couple of hours on the Veil, sweeping to and fro to pick up as much as I could, really rewarding stuff. The NAN was, again, very obvious and well defined, particularly around the gulf region. The three roughly mag 10 stars marking the outer edge of what I suppose is Mexico are great to view, and overall this is the most interesting part I guess. The nebulosity extended up along way from this and I found it harder to keep track of the overall shape with the relatively narrow field of view. Some cloud started coming in at this point, probably around 12.30am, so I decided to pack the dob away and head home. Once done however the skies were again lovely and clear, so I thought I would give the 72mm a chance, not expecting much because of the small aperture and the fact that I had let my dark adaptation go a bit whilst packing the dob away. I was very pleasantly surprised I must say. With the 30mm giving over 5.5 degrees, the full Veil complex fitted in easily, with clear sky all around. East and Western Veil and Pickering's Wisp all visible. Far less detail visible obviously, for instance I could not detect the split in the broom, but seeing the whole object in context is a fabulous experience. I guess it was just the great skies, but I've not seen it this good before even in my Televue 76 or Tak 76. The North America Nebula is another that benefits from the additional context, if anything more so than the Veil. Perhaps because it doesn't have as much going on internally, it is all about the overall shape. I didn't really focus on picking up the Pelican, so won't add this to the list, I think I got it but not sure. During the evening a chap called Neil arrived in the same car park for a spot of widefield astrophotography. We had a couple of nice little chats, and he was kind enough to take an image of the MW with me silhouetted against the sky which he emailed me today. Looks fabulous! Obviously the MW was not that bright but still the Cygnus rift was very marked and there was some structure particularly towards the south. I got home at 2am, and it was very interesting to note that the Milky Way was still quite noticeable from near the town centre, and I measured the sky at 20.85. Pretty impressive! Just a final note of thanks to @Johnwho, via this forum quite some years ago, introduced me to the Veil and the concept of viewing it in widefields of view. I mimicked his Vixen 102 f6.5 with an AstroTech 106mm f6.5 triplet and copied the 31mm Nagler to give me a 3.6 degree fov and bingo, I was hooked. I don't suppose I will ever tire of it until the eyes give out finally! Well done and thanks if you made it this far!! I couldn't seem to stop typing Images 1) Sumerian 14" Alkaid in the Mondeo boot 2) Above scope now hidden 3) Thinktank Airport Accelerator packed with TS72mm and kit 4) Sea horizon looking south from near Shrinkle Haven beach 5) Sumerian setup 6) Observing location, Shrinkle Haven beach car park 7) Observing location, 20 mins or so from Saundersfoot where we are staying Stu, Sumerian and the Milky Way. It doesn't get better than this
  14. 26 points
    Seems a long time ago already but a month ago I visited this place which has been on my "must do one day" list for many years. Very much worth a visit if you are ever in northern Arizona
  15. 25 points
    Reflection Nebula NGC1333 in Perseus, part of the Perseus Molecular cloud and about 1000 light years distant. Thought I'd have a go at this as I've seen some lovely examples on here. Imaged through my Esprit 150/SX-46 with piggybacked Esprit 100/ASI1600mm on a Mesu 200 on the nights of 29 November and 2 and 3 December.. 9 hrs luminance through the 150 and 3hrs each RGB through the 100. Processed in APP, Pixinsight and Photoshop CC... much dimmer than I had anticipated, hardly any of the dust showing after 3 hrs on the first night. Thanks for looking Dave
  16. 25 points
    100 odd frames "real time" animation of Africano on 1-09-19 / 02-09-19 continuous 120sec exposures started 22.23 ended 02.09 Been messing about with this on and off, could do with more work but it'll have to do, it's the thought that counts Shrunk it to tiny JPEGs but it's still 40mbs Dave
  17. 25 points
    This was my first attempt at a sketch. Was battling clouds the whole time, so that added to the challenge. Let me know what you think.
  18. 24 points
    A couple of years ago I looked at doing this, I started a sequence and after the first sub it clouded over and that where my plans stayed until the last couple of weeks. Unusually the weather forecast on all of these nights wasn't great and for the OIII and the SII they were captured on nearly a full moon, last night I was plagued with gusts of wind up to 17mph, but that's all they were ad-hoc gusts and I lost 3 subs. These were all captured with 1200s subs of Ha, OIII and SII a total of just under 11 hours of data. This was one of those images that the more you worked on it the more it developed, I had in my mind a "Pillars of Creation" Colour scheme and deliberately didn't not recall or research it again as I knew when it would be right, and to my mind this is. The reality is that I probably haven't spent more that 3/4's of an hour in total working on it as I had some important work to finish. I was worried about the double stars at the centre overlapping and I did have a go at star reduction, but it seemed to ruin what was actually there and so I have left it. Because of the wind, the guiding was from 0.24rms up to 0.80rms, but the iOptron 120EC Mount is really performing and handled it easily at a focal length of 2008mm with my GSO RC F7.9 Truss Scope. I hope you like it as much as I do? 11 x 1200s Ha, 11 x 1200s OIII, 10 x 1200s SII, iOptron 120EC, Moravian G2-8300 MKII, GSO/Altair 10" RC F7.9 Truss, Chroma 2" Unmounted 3nm Filters, Bortle 5 Skies, 19.51 SQM Here's the link to the acquisition details: - https://www.astrobin.com/fs2s15/?nc=user Here's the Bumf: - The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the east of IC 1396A. (In the Spitzer Space Telescope view shown, the massive star is just to the left of the edge of the image.) The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays. The Elephant's Trunk Nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity. The combined action of the light from the massive star ionizing and compressing the rim of the cloud, and the wind from the young stars shifting gas from the center outward lead to very high compression in the Elephant's Trunk Nebula. This pressure has triggered the current generation of protostars.
  19. 24 points
    We have no plans now or ever to charges SGL members for access to the data - promise For us, this will be a great test bed for new gear so we can get a lot of data in a much quicker space of time (250+ clear night a year!), it will give us images we can use for promotions / marketing / advertising (we always need nice pictures for banners etc..) and it will be a great way to let people see the results of this equipment so we hope it's a good advertising tool as well but, I think fundamentally we think it's a nice thing to do for the astro community similar to our other projects (Astronomy Tools, Clear Outside and sponsoring SGL). Grant
  20. 24 points
    Imaging telescope:Takahashi FSQ106ED Imaging cameras:Nikon D810A, Nikon D600 Monomod Focal reducer:Takahashi Reducer QE 0.73X Filter:Baader Ha 2" 3.5nm RGB+HA 120x300 sek Norway 2018
  21. 24 points
    TEC140 and Atik 460. Two hours L and an hour each RGB.
  22. 23 points
    Good evening Here is my new dob ready for first light. I understand it was made by Darkstar as a prototype. It has a 20 inch Jim Hyson mirror in it. So a little star test tonight with a first object of M13 as the previous owner loves Globular clusters. Mark the galaxy hunter..
  23. 23 points
    It has been a long wait this year to get the time, or weather to image Saturn this year. An opportunity presented itself on the 19th and the seeing seemed pretty decent as well Saturn obviously very low at around 14 degrees. some pretty good detail visible though. C9.25, Asi224mc, ADC, X1.8 Barlow. Stacked around 10% of 30,000 frames. Astra image software for processing, impressed by the Lucy Richardson deconvolution and particularly the denoise function.
  24. 23 points
    I would love to have done the whole thing, but I'm just grateful to have seen it at all. This is 9 frames, I think roughly 1 minute between exposures. Baader WL filter paper, ED80, Nikon D800E, layers manually in PS. Thanks for looking Adam
  25. 23 points
    Well, 17 1/2 hour but who's quibbling about that. I know it's dangerous to say "Final" about anything but I think I've taken this as far as I want to since I'm now into diminishing returns. This is 3 hours each Red, Green and Blue plus 8 1/2 hour Luminance. Anything more from here will be in the processing. TS 130mm f/7 Apo Triplet, TS 2 1/2" flattener, Baader LRGB filters and SX Trius 694 on an ASA DDM60 mount. Capture in Maxim DL6 with mount control and encoder guiding in ASA software, in a 21.66 location. Processing in AstroArt 7. Sigma Stacking with Bias only (Due to multiple filter changes and cleaning making Flats problematic) followed by alignment of the unstretched stacks, then Luminance given DDP and a light Deconvolution, Maximum Entropy with Gaus PSF. Unstretched R, G, B stacks into Trichromy followed by DDP and a moderate Saturation Boost then LRGB synthesis. Finally cropped to get rid of alignment edges and a Gradient Removal, Adaptive Subtract to get rid of a Green / Magenta gradient (Only visible with huge screen stretch). Phew! C&C welcome as always. It's not going to challenge either @ollypenrice or @kirkster501 for the title of best Stephan and Deer, but I'm not unhappy with it.
  26. 23 points
    Hi here (as the title suggests) is my first attempt at an lrgb version of one of my favourite dso’s Its a compilation of a few short exposures with a mono Atik460 through my rev Astro ed100. About 8 x 4min per channel, stacked in dss and tweaked in ps and ps express on my phone after! Cheers Bryan
  27. 22 points
    As stated on the "anybody playing tonight" thread, I have de-camped to Davey T's house and put my kit in his Bortle 6 garden to get away from my home location at Bortle 8 with a dirty great tree in the way of Orion. This is the first time I used my Hotech Idas LP filter as a Luminance filter. Hutech Idas LP filter as Luminance 11 x 600 Ha 7nm 11 x 600 RGB 24 x 150secs binned x 2 All with individual shorter subs for the core Total imaging time 6 hours Atik460EX WOZS71 HEQ5 I haven't imaged this target for years due to the LP and tree, and it is the first time I have done it with a Mono camera. I added Ha to Lum channel and Red channel. Carole
  28. 22 points
    A few weeks ago, I moved the 18" Obsession from it's shed to another room inside of the large barn, for easier access to the paved yard. The view is more restricted now, but I can wheel out the scope (wheelbarrow handles already attached) and start observing within three minutes. No slippery grass, dew or white frost. This was convenient this morning, when I woke up at 04.35 CET and noticed, that the nightly clouds had mostly gone, and the nearby street lights were still off. With the 18mmf/82° Maxvision, giving a TFoV of 0.72° and 114x mag, I started eight minutes later with M 35, already deep to the west. It's stars filled the whole field of view. More fascinating was the nearby oc 2158, a very remote cluster (16500 Lyr). It was well resolved into tiny 13 and fainter mag stars - a really "stardust"-impression, and aesthetically very pleasing. Over to the Leo triplet, M 65, 66 and NGC 3628. The former two showed readily as oblong 3:1 galaxies, and the fainter 3628 revealed even the slightly asymmetric located central dust line. All three were in the same field of view. The oc M67, again filling the field of view, finished the 15 minutes session, that was accompanied by two bright Quadrantid meteors (about -1 mag), heading south with rather high velocity. - The illuminated street lights (at 05.00) terminated the observation, but were helpful, when I pushed the scope back into it's at least temporary new housing. A nice and rewarding start of 2020; and so to bed for additional two hours of sleep. Thanks for reading Stephan
  29. 22 points
    I managed to get out Monday night for the first time in months due to the very poor weather , which is annoying for a number of reasons .. one being I have 3 scopes that I need to set up for various reasons .. I have just fitted a new moonlight focuser with Rotator to my 130EDT .. , my TS65 Quad on iOptron 25 mount hasn't been set up since purchasing, and I fitted a set of colomation knobs to my 8" Edge which meant that this needed setting up properly .. so I decided to use the Edge as I wanted to capture the Crab Nebula and this gave a nice FOV .. I didn't get quite as long as I wanted on the target as I was setting the focus up etc ..but managed 6 hours total integration time 24 x 600 sec Ha 3nm 12 x 600 sec OIII 3nm processed in APP , PS and LR
  30. 22 points
    When I was about 10 years old reading my space books (I think Jupiter only had 13 moons then ), I remember being fascinated by the Crab Nebula. Imagining those Chinese astronomers seeing and documenting the supernova nearly a thousand years ago really made me think and kickstarted my interest in astronomy (along with the 9(!) planets and the 1999 solar eclipse which at the time seemed ages away) However, fast forward to 6 years ago when I got my first telescope, m1 was a big disappointment - it was a small faint smudge at best and as it was called m1 I was expecting much better. I recently read that it has expanded and become quite a bit fainter than when messier logged it 250 years ago which I guess explains this. But about a week ago I was out at a darkish site (sqm 20.7) with my c11, night vision monoculars and ha filter and I at last managed to get a decent view of it. It’s been an object I wanted to properly tick off for a while so I’m very pleased nv has enabled me to do this. Here’s a phone shot I took of it at the eyepiece. For some reason I haven’t really observed the Orion region with a larger scope and nv at decent skies before and I was therefore pretty excited to get the opportunity that night. I don’t think transparency was that good but the views were still pretty decent. Attached are some other phone shots I took. In order the flame and horsehead, the monkey head nebula, inner region of the rosette, the jellyfish, cone and lowers. Plus a montage of nv phone images of various DSOs I’ve taken over the past 12 months with a variety of scopes large and small. A very rewarding early hours session, the c11 proving to deliver to goods once again. And a childhood ambition completed at last...
  31. 22 points
    I am always fascinated by this target, and am always surprised just how much focal length it takes to really get close in on the pillars. This was taken with a 5" scope, so I was not expecting too much. I know the stars need some work--believe me, they were much worse. Kind of too late now anyway as I just have the JPEG. Obviously this is a crop, and at first glance I say Woe--too big on the screen. But each time I look I end up changing my mind on a down sample and size reduction. I look the forward to capturing this with the C11--but its not an easy one for me to get--maybe next year. EDIT: It reduces in size when you click on it. TOA 130 with ASI 1600 Ha 49 5min OIII 25 min SII 25 min
  32. 21 points
    Greetings! So I received my new 10" f/3.9 imaging newtonian and let me tell you... WOW. The difference in signal between the Newt and my f/8 RC isnt even comparable. I have taken 5 images of the Orion Nebula since I started this hobby four years ago almost to the day. This issue is.. I have never spent more than 3 hours on the target! This past week I decided to dedicate a few nights to this subject and collect a good 15hrs of data which would have been equivalent to 60 hours with my RC ( which is 2 stops slower). The coma corrector works perfectly spaced at 55mm and the collimation out of the box just needed a bit of tweaking of the primary mirror. This Scope is a BEAST and it is heavy. Balancing the Newt on my CEM60 was a challenge but twisting my scope so that my camera and guidescope point down to the ground at the home position instead of to the side or towards the sky really helped. Since I am using a guidescope I am seeing a bit of flexure even at 300s subs so my plan is to get the spacers for my OAG and have that ready to use again here shortly.. Anyway! Here is the Orion Nebula in all it's glory. Equipment: Cem60 10" F/3.9 Newtonian ASI1600MM-c Astrodon LRGB 10 hrs Lum 1.5hrs RGB each Clear SkiesTeagan
  33. 21 points
    I've just come inside from an hour and forty five minutes of observing and have but three observations to show it. The small number of observations does not tell the whole story though. I started observing around 22:20. I'd been wearing an eyepatch over my observing eye for around 15 minutes before going out to give me a jump start on dark adaption. The first observation of the evening was Comet C/2018 W2 (Africano). I'd observed this a couple of times from my local dark site when it had been very faint, just showing with averted vision. This evening it was placed next to a pair of stars that were close to Delta Andromeda. My 9mm Lunt XWA showed a fairly diffuse comet but visible even in direct vision. An excellent start. Starting from Gamma Psc, I star hopped my way down to Neptune. My goal was to observe Neptune's moon Triton. I have tried and failed to see Triton more times than I care to remember. Earlier, this very week, I'd spent over an hour trying all kinds of eyepiece and barlow combination in the hope of getting just a glimpse of the faint moon. I'd regrouped for this evening's attempt with a fresh plan. I'd use my 9mm Lunt XWA and the Baader VIP Barlow in 2" mode with three T2 15mm spacers. If my calculations were correct that gave me a multiplier of 2.64. The Lunt would be giving 352x magnification and TFOV of 0.28 degrees. I had decided to try and keep to this combination rather changing eyepieces a lot. Well after 20 mins or so of watching the pale blue disc slide through the eyepiece with no luck, I decided to change the plan. My 9mm BGO has always given better contrast and sharpness than the Lunt so I screwed in a 2-1.25" adapter and started to use the ortho. The TFOV was now halved to only 0.11 degrees. My 10" dob is only manual so this did make tracking a bit more challenging. Time moved on and still no sign of Triton. I decided to throw some more magnification at it. The 9mm BGO was replaced with a 6mm. Things were getting serious now, 528x mag and down to 0.08 degrees TFOV. A few more passes and nothing. I decided to target a specific point above the planet rather than moving my eye around in search of the correct position. On the next pass a dim glow above and to the left of Neptune. My heart quickened. Two more passes and nothing. Then on the third came the same dim glow. It was farther away from Neptune that I'd expected. I set SkySafari up to show the FOV based on my eyepiece/barlow combination. The position of the glow looked good for Triton's position. Once again a few more passes with nothing and then the glow was found again in the same spot. I popped the 5mm BGO, 634x magnification. Tracking was tricky and I couldn't see the glow. I dropped back down to the 7mm Meade RGO, a mere 453x, on adjusting focus a clearer view came through and then more passes with nothing again. My eyes felt tired now so I stopped and just looked up for a couple of minutes. On returning to Neptune, the pattern of seeing nothing and then every few passes catching a dim glow above the ice giant continued. After awhile the glow was lost completely. Looking up showed that hazy cloud was now passing over and the rising Moon was starting to make its presence felt too. I returned to Comet Africano but it was now hidden by the thin cloud and Moon glow. Time to call it a night. Did I see Trition? Not in any satisfactory way but it's the first time that I really felt like it was there. This observation felt like a range finder. I've found the right combination of equipment and know what to expect. With darker skies, I'm sure my views of Triton can be greatly improve upon.
  34. 21 points
    Yes - I know there are some negative points that can be raised about this image - but for once....I am thinking positive This was from a bad night at the end of 2017 and I did not think I could make an image with the data I took home. My goal was a colour image, which I did, but recently realised that putting the data into solely mono form....well... it just worked better. I hope you can look at it.....and see the 'positives'.......
  35. 21 points
    I decided to combined all the images from my meteor camera into a few composites images. I had a total of 89 confirmed Perseids over three nights, which I was very happy with. This plot shows the position of the meteors relative to my location. Thanks for looking.
  36. 20 points
    This is my take on M42. It's an HDR image with a mixture of 300s and 10s in L and RGB. I also used 20mins and 10s in HA then used this to enhance the detail. Total of around 23 hours. Hope you like it! Hi res below. https://astrob.in/q734k5/0/
  37. 20 points
    Greetings! This was a 113hr collaboration with my friend, Trey Henderson. We totaled 50hrs of HA data (25 ea.), he collected 25hrs of Sii data, and I collected 28hrs of OIII data as well as 10hrs of RGB data for the stars (not presented in this image). As far as this image goes, I will be doing another rendition to show really show off the SHO (sulfur, hydrogen, oxygen) palette. This is also an SHO pallet but I really wanted to try the gold and blue look without the green... so I SCNR’D the greens out. The two looks are very different but awesome in their own way.. Anyway, I digress... ———— This nebula is the most detailed area of what’s better known as the Soul Nebula. I believe it lies nearly 6,500 light years away and is right underneath Cassiopeia. The one structure coming from the Ha and surprising the Sii channel give this nebula such a 3D feel. The spires on the right side of the nebula are nearly transparent! It’s so wild looking to me! The orange colors here are ionized hydrogen and sulfur atoms. These atoms are being excited by the solar winds of the surround massive stars. The beautiful blue hues are ionized oxygen atoms. ———— This collaboration was a TON of work. Long nights of problem solving and trouble shooting connection problems, internal mount issues, data transferring issues (my fault bcs I don’t pay attention, lol), dew issues, scheduling issues, moon/running out of time issues... we barreled through nonetheless! I hope you guys enjoy! Equipment: at8rc/Edge8HD, asi1600, Cem60, Astrodon HA/Oiii/Sii 3nm. Clearest Skies! Teagan
  38. 20 points
    My run off roof observatory is a sad sight emptied of all the kit and left draped in the cobwebs I always intended to remove. It has been an effort over more years than I care to remember populating it with mounts, telescopes and various instruments. It now sits idle and unloved. Potential fire wood. But, wait the kit sits neatly packed ready to go to a new home in southern Spain. The promise of 200 plus clear nights a year rather than the 10 or so I get in the cloudbank that is the Cheshire gap. Sunday will see the start of an adventure to load the car (very full) and set off to Eurotunnel... ...to be continued. Regards Andrew
  39. 20 points
    To me Saturn is one of the most remarkable objects in the night sky. It's not just an imaging challenge but it is fascinating to observe. This was my latest image taken early August and may well be my last of this beautiful planet as I doubt that I'll be able to do better any time soon. Taken through a Meade LX90-8" with a ZWO ASI120MC camera. For those interested in the process, the capture software was Sharpcap taking 2,000 frames at 24fps. The image comprises 20% of those frames selected by AutoStakkert-3 and then processed first in Registax6 then in Photoshop CS3 including use of the plugin Astra Image.
  40. 19 points
    I've had a lovely session with my Takahashi 100mm refractor tonight. Particularly enjoyable because of the awful weather we seem to have had for the past month - a clear and reasonably dark sky for a decent period seems a real novelty ! I've observed a wide range of targets from Venus at dusk out to galaxies "far, far away". The distant gas giant Uranus, binary stars, star clusters, star formation nebulae, planetary nebulae and super nova remnants have also been visited and admired over the past few hours. I don't generally observe asteroids that often but tonight one of the largest in the asteroid belt, 4 Vesta, was conveniently positioned in Cetus near the 4th magnitude star Mu Cetus. At magnitude 7.7 4 Vesta was not easy to pick out in the 6x30 optical finder that I was using but the star hop from Mu Cetus was pretty simple so I had no difficulty identifying the star-like point of light amongst a distinct field of background stars. This is the Stellarium view of 4 Vestas position tonight: And a point of light is all that 4 Vesta appears as in the scope, even at high magnifications. While it is a giant among asteroids, 4 Vesta is a mere 550km or so in diameter and currently a bit over 300,000,000 km from Earth. Stellarium estimates its apparent diameter at .3 of an arc second. I don't know how accurate that is but my 100mm refractor was not going to show its disk, thats for sure ! Despite the modesty of its visual appearance, I was very happy to be observing this little worldlet during its 3.6 year journey around the Sun. A few years ago NASAs DAWN spacecraft visited 4 Vesa and produced some outstanding imagery such as this example showing the whole asteroid in all its scarred glory. 4 Vesta has clearly been though a lot in it's 4.6 billion year existance: Now one of my other astro-related interests is meteorites. I currently have a small collection of specimens of the main types built up over the past 12 months or so. Three of my samples are small representatives of a group of meteorites known as HEDs - an abbreviation for Howardite, Eucrite and Diogenite. These are types of achondrite meteorites so were formed through melting and recrystalisation of igneous rocks. The exciting thing about the HED group of metorites is that we are now fairly certain that they originated from the asteroid 4 Vesta !. So I thought it would be fun to include some photos of my little specimens of 4 Vesta in this report. Perhaps one day a sample return mission will bring back some material from 4 Vesta so that it can be compared with the meteoric samples that we have ? Here are some pictures of my specimens of these 3 types. The green cube is 1 cm square for scale - these are small pieces of rock ! Of these 3, only the Tatahouine Meteorite (the greenish one) was actually seen to fall. The other 2 were finds in the north african desert regions. Small fragments of that distant body that I was observing earlier though my telescope. Rather awesome
  41. 19 points
    Tonight I managed to finish processing one more target. Not to long until I'm up to date IC 1795 Equipment used: Eq6 hypertune gen2 AstroTech 106LE with upgraded Moonlite focuser TSFlat 2" field flattener Qhyccd QHY183M Coldmos, cooled at - 20°C 7x1.25" Starlight Xpress USB filterwheel Baader 1.25" filters, 7nm Ha, 8.5nm Oiii and 8nm Sii Qhyccd QHY5L-IIM guide camera TS09OAG off axis guider Qhyccd Polemaster Software used: Eqmod, SGP - Sequence Generator Pro, PHD2, Stellarium with stellariumScope, SharpCap for polar alignment Date: 14.09 to 11.12.2019 Location: Bushey, bortle 6 Total integration time 19 hours Stacked in AstroPixel Processor and processed in Pixinsight and Photoshop CC 2019 Emil
  42. 19 points
    Kronberger 24 is a faint planetary nebula in the constellation of Cygnus. It was discovered by Matthias Kronberger in 2010. Reference: <a href="https://arxiv.org/pdf/0910.0465v1.pdf" rel="noreferrer nofollow">arxiv.org/pdf/0910.0465v1.pdf</a> Astrodon Blue: 210x300" Astrodon Green: 20x300" Astrodon Red: 20x300" Astrodon OIII: 41x1800s bin 2x2 Astrodon Ha: 27x1800s bin 2x2 Total Integration: 39 hours Captured on my dual rig in Spain. Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length) Cameras: QSI6120wsg8 Mount: 10Micron GM2000 HPS
  43. 19 points
    I made a video showing a few objects that can be seen with binoculars or a small telescope. I captured the video at around 22:00 on the 22nd of October. You should get the same view at about 20:00 this week. (The moon may be a bit bright though!) I've tried to get the views as close as I can to what can be seen with the naked eye, 8x40 binoculars and an 80mm spotting scope or similar. All comments and criticism welcome!
  44. 19 points
    I just had to share this. After weeks of crappy weather, I was looking forward to getting some XT8 time tonight. I had a bad bad week at work, difficult work and stupid client and many late nights...then a 2 hour commute home on Friday night had me walking through the door exhausted, brain dead and irritated. But 3 hours outside, looking at the moon, at Uranus, M42 and other beauties just washed that all away entirely. It was the PERFECT antidote to the crappy week. I love being outside alone, just gazing up and star hopping, alone with my own thoughts. Astronomy is really the perfect, relaxing hobby. I wish I hadn't waited 44 years to get a telescope! This and cooking are now my two favorite things to do..well, at least to do alone. Thanks for reading. Sorry for the pretty pointless post.
  45. 19 points
    The middle of September brought with it many clear nights to Berkshire (as usual starting with the full moon) and during it I captured 3hrs per channel RGB, 19hrs Ha, 7.5hrs Oiii and 5hrs Sii (total 41 hrs) on the Elephants Trunk Nebula (quite a lot of whilst asleep). Equipment used was my Esprit 150/SX-46 with piggybacked Esprit100/ASI1600mm on a Mesu 200 all controlled through SGPro. Guiding was by OAG with dithering on the Esprit 150 every 3 or 2 frames depending on whether it was taking RGB (10min subs) or Ha (20 min subs). Exposures on the ASI1600 were 5mins and about 15% were lost to dithering and autofocus on the Esprit 150. Processing was done in Pixinsight and Photoshop with the StarNet star removal tool in Pixinsight used to remove the stars from the narrowband images. Starless and starry narrowband images for each filter were then blended in PS to produce images suitable for combining with the RGB as HaR_OiiiG_OiiiB or on their own as SHO. Ha was then used as luminance over both. StarNet was then applied to these images, PS heal brush used to remove artefacts, channels split and combined with lightly stretched and split RGB (Photoshop blend mode lighten) for tight stars. These new images were then blended with Ha as luminance and the non star removed HaLum_HaR_OiiiG_OiiiB and SHO for the final result. The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. Thanks for looking, c and c welcome Dave
  46. 19 points
    NGC 7662 is also known as the Blue Snowball nebula, and the Snowball nebula. It is a planetary nebula in the constellation of Andromeda. There is uncertainty about its distance, with estimates varying between 1,800 and 5,600 light years from Earth. This is a total of 20 hours of integration. Captured on my dual rig in Spain. Scopes: APM TMB LZOS 152 Cameras: QSI6120wsg8 Mount: 10Micron GM2000 HPS The core was captured from London on my Celestron C11 telescope.
  47. 19 points
    Before starting an imaging run I now do some test images with different filters, exposures, and binning to see which combinations work best. When I examined the OIII 1800s bin 2x2 test image I was surprised to see an asymmetric outer shell with intricate structures, and so factored this into my image capture plan. This is the result. There is also a very faint diffuse OIII shell that is even further out from the core. I found processing this to be a real challenge, with 7 filters, and exposures varying from 30 sec bin 1x1 to 1800s bin 2x2. Integrating images with such extreme dynamic range was also a challenge. I was concerned by some lighter parts of the sky background, but after checking with other images available online it became clear that this was integrated flux nebula. This is a total of 57 hours of integration. Captured on my dual rig in Spain. Scopes: APM TMB LZOS 152 Cameras: QSI6120wsg8 Mount: 10Micron GM2000 HPS
  48. 19 points
    Continuing the epic, now a picture at a low angle of illumination of the landing place of Apollo 16. We can see that this place was much more wild than the place where Apollo 11 landed. https://www.astrobin.com/full/414691/0/?nc=user
  49. 18 points
    Surprisingly it stayed clear all night so I got almost 14 hours from my dual Esprit rig on this enigmatic planetary nebula. There was a full mon of course but I still took the chance of collecting some RGB with the Esprit 100 and ASI071. I only expected that I at best could use it for star colour but the data turned out to be virtually without gradients. It probably helped that the scope was pointing away from the moon. I also decided to go for rather short subs so I ended up waiting for my computer to stack 263 x 90s of RGB data. On the Esprit 150 the ASI 1600MM was collecting 2 hours of Ha (Baader 3.5 nm) and 5 hours of Oiii, (Baader 8.5 nm) yielding another 200 or so subs. I also shot some 10s and 30s subs to save the very bright core of this nebula - the actual eye. The result of shooting the sky with the Esprit 100 was a quite wide field with a rather small nebula, so I post it from wide to narrow here. Suggestions and comments most welcome! Cheers Göran
  50. 18 points
    Heya, Late this evening the small bright prominence on the West limb lifted off and became enormous (1730 Eastern Time). It's still present even now but it has spread out and gotten fainter. I managed to get some tolerable data in poor seeing late evening after a few attempts. Lovely huge prominence with lots of interesting raining detail. Earth scale provided, it truly is a monster. Very best,
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