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Showing content with the highest reputation since 18/10/20 in Posts

  1. 29 points
    Gorann's excellent RASA M45 image reminded me that my own M45 was processed before I'd thought to use the Ps Equalize function for enhancing faint contrasts, so I went back to the data for another play. This was always a somewhat head-banging image but I wanted to show how the cluster is leaving a 'wake' as it ploughs through the gas and dust of space. (The technique involves pasting an 'equalized' copy of the image onto a layer mask, blurring it and increasing its contrasts, and then stretching through that.) I've gone for an unconventional orientation partly to refresh my own eyes on the target, partly to put the visually 'heavier' dust at the bottom and partly to exploit two nice stellar arcs, the smaller one upper left and the larger one lower right, which trace an S shape through the picture. LRGB from Tak 106N/Atik 11000/Mesu 200. Barking mad integration of over 25 hours. Olly
  2. 26 points
    A night of great seeing resulted in one of my best overall images of Mars and my first-ever image of Olympus Mons! The south polar cap, though small, was becoming more prominent, and a number of dark albedo features were on display: Equipment: Orion SkyView Pro 180mm Mak-Cass, ZWO ASI 224MC, Celestron 2x barlow Post-Processing: Registax 6, Photoshop I was quite pleased and pleasantly surprised to capture Mons which I wasn't sure was possible without more aperture. Regards, Reggie
  3. 26 points
    Not sure if these strange creatures have any names or designations - I found them by surfing on Aladin Sky Atlas around M45. What I know is that the blue binary star in the centre is Chi Tau. This is my first attempt of a two panel mosaic with the RASA8, so quite a wide field (two Andromeda galaxies would fit into the field of view). So these are very large but also very faint structures and I have here gone close to the limits of what this f/2 telescope (RASA combined with a very sensitive, low noise, 16 bit CMOS camera (ASI2600MC) can achieve at this integration time, which was totally 6.6 hours (2 - 4 min subs). Caught over two recent nights (16-18 Oct). I would welcome if anyone knew the names / numbers of these darkish nebulae! EDIT: just realized that emojis are taking over. When I wanted to write RASA 8 i parenthesis the SGL-system turned it into a head with sunglasses.
  4. 26 points
    So, for the last few days I kept thinking that Orion is coming back in the scene and I was wondering if I should shoot it again with the 6" RC and QHY163M. Because of that I decided to stack all the data I had on it from 2017 and 2018 to see what result I get from it and if it's the result is good enough I can skip it this year too and concentrate my imaging time on something else. I only have 4 hours of data and maybe adding some Ha to it would bring some benefits, I don't know, but I'm really pleased with what I got from it and I just might skip it this year too, what do you think? I got 8 spikes because I had the rotation set at both 90 and 0 degrees Skywatcher 200p Upgraded Carbon fibre Skywatcher 10" quattro Astromodified Canon 700D QHY10 osc cooled CCD Skywatcher 0.9x coma corrector Baader mpcc iii coma corrector IDAS LPS-D1 IDAS LPS-D1Clip filter 200p + 700D: 59x120" ISO800, 50x3" ISO800, 4x30" ISO800, 3x300" ISO800 10" quattro and QHY10: 11x60" (gain: 15.00) -15C bin 1x1, 13x600" (gain: 15.00) -15C bin 1x1 Emil
  5. 24 points
    Well, not 35 consecutive days of Mars images, rather images of Mars over 35 days/5 weeks where we continue our attempt to create a series of "disk maps" as opposed to "projection maps" that are more common, certainly insofar as annotated hi-res ones are concerned that can be used as "ready-reckoners" to determines specific Mars regions & place names. Some maps have the same features annotated, but only where said features appear on adjacent maps to help "reference" positions etc. We posted the first of these maps some time ago from the September 13th imaging session - here are the subsequent ones. ;) We now only need to get a good image of the Syrtis Major aspect to finish all the vistas - hopefully in the next few days or so! :fingerscrossed: This (hopeful!) capture of Syrtis Major would fill nicely the gap in the "compendium" set of capture scale images I'll post here also...going between the 1st & 2nd columns of this. Incidentally, all images were captured at between 45°-50° elevation, with 50° being the absolute highest we ca image Mars if we travel 400km+ north or our home...& the latest image (18th October) was the first time we have been able to image from home with decent seeing...or more so without clouds! :)
  6. 24 points
    Having recently acquired a C11 I managed to grab a few shots of the Moon recently after ending a session on Mars. This was the first time I have had the opportunity to observe the Moon through this scope and despite only being around 20 degrees above the horizon at the time the results were surprising. I especially like shooting over the south pole to try and catch the mountains on the limb and for the first time I have managed to record some subtle shading on the distant mountains themselves. I am looking forward to seeing what I can get out of this scope over the winter when compared to the 8" Edge HD I have been using for years .
  7. 24 points
    This is 3.5 hours of data with the RASA 8 and ASI2600MC (105 x 2 min at gain 100, -10°C) on a NEQ6. There is apparently quite a bit of dust around M45 that I have not noticed before. I am pleased to see how deep this telescope/camera combination can go in a few hours. A dark site (Bortle 2-3) helps of course. Stacked in PI and mainly processed in PS, as usual. EDIT: I now added a second version of the image, inspired by Olly's reprocessing of his data, where I have sharpened the image more (mainly HiPass filtering and LCE in PS), getting closer to the limit of what the data can support.
  8. 23 points
    After an unusual spell of clear nights, rain and clouds have settled here so this will be the last RASA image for a while. Thanks you all for the encouraging comments on my previous ones! This one is maybe not of the same quality since seeing was not the best, and it is a faint object. I found it by surfing in Taurus on Aladin Sky Atlas and did not recognize it until I started processing. Processing was quite challenging for once, and I whent astray with the stars, but after sleeping on it and starting over I finally had a presentable image.
  9. 21 points
    M31 - Anromeda in HaLRGB - 97 Hrs over 8 nights Luminance = 579 x 120s / 19.3HrsRed = 167 x 300s / 13.9HrsGreen = 172 x 300s / 14.3HrsBlue = 169 x 300s / 14.0Hrs H-Alpha = 432 x 300s - 36Hrs Scope: https://flic.kr/p/2gAfKn7 Higher Resolution: https://drive.google.com/file/d/1Vcs2prt_4VntF8jYRi8KX7OId5lXZMoN/view?usp=sharing https://drive.google.com/file/d/1_Lj-cpsp6CuFfLv-pVQUdn1QB9MLwUBJ/view?usp=sharing
  10. 20 points
    After a 5hr drive to the site ( leaving the cloud and rain behind in the Lake District) I set-up quickly with the promise of a clear night ahead...rare for me in Scotland!! Dew heaters on ,kettle on, 21mm Ethos in..ready. First up I just had to look at Jupiter, Saturn and Mars..Jupiter wasn't showing much detail and Saturn was only slightly better but tbh its always a better view than Jupiter!. Mars ( star of the show) was too bright for viewing without a filter..so on to the Witches Broom. Not a massive difference between the filtered and unfiltered view, not dissapointing, just not spectacular. Hoping towards M57 and upping the power to the 8mm Ethos the target looked fuzzy!...not the best sky conditions but a clear sky doesn't always mean a good sky. Swinging round to M31 the dust lane and extent of the object was impressive...you do kinda forget how big it is until viewed in dark skies!. Following down Kembles cascade to seek out NGC 1501 in Camelopardalis. I picked up this target from O'Mearas Hidden treasures Number 22. The Blue oyster nebula is a mag 11.5 planetry nebula that's pretty bright, smallish pale blue object and the 13mm ethos at x157 showed a pin cushion viewed from above sight...nice catch! M33 had two main spirals along with inner detail that was pleasing. Next up was M77 in Cetus, bright core but lacking in spiral action...hmmm..not really a great galaxy night as confirmed by Mapstar who was struggling to track down a galaxy in Auriga. NGC 1074 and 1055 bagged but not memorable yet NGC 891 was good with the dark lane shown with ease..but then again it's huge!. Popping over to Perseus NGC 1003 was just a fuzz...coffee time and a bowl of soup later I sneeked a peek at M1 and to my suprise the unfiltered view in the 21E was good with inner structure ..i spent time on this as it wasn't half bad!. Orion was rising but at this point of the night the stars started to twinkle more and more ..on to M42. Normal showcase view even low down!..but the Cone nebula would be rising soon so another coffee was needed to boost me into the wee small hours...choccy bar and i sat down ....mistake...i woke up with a jolt and coffee running down my leg....i was shattered and decided to call it a night as the drive up had taken more out of me than i thought....drat. Friday night was a waiting game as a clear patch of sky was moving in from the west.. but never moved far enough to reveal more the jupiter and saturn....only triumph was the capture of M17 in Sagittarius and M18 just to the side...by 10pm it was game over, shame but at least i had a taste of the dark skies of Galloway....and dark they are!.....clear skies everyone. Calv.
  11. 19 points
    My Baader 3.5nm Ha filter arrived last week, so I took the first available opportunity to use it, on the first available target. Also very glad to see Orion clearing the trees for the first time this year! Lovely to see him back. Actually woke up at 4am last Sunday morning to clear skies, so I set up and took 1.5 hours of lights before dawn broke. I'm like a kid in a sweetshop with the amount of detail I can get with that filter in my Bortle 8 skies, even though I know there's more that can be done in processing. There's a lot of nebulosity up there! All feedback gratefully received! SW Esprit 80 on a HEQ5 pro ASI1600MM Pro cooled to -20c 17*300s Ha (one frame took a wobble when I kicked the tripod) 12*30s Ha to get some unsaturated core Full sets of darks, flats and dark flats applied. Stacked in DSS and processed in Gimp.
  12. 19 points
    At the end of September I caught this dark nebulosity between Cepheus and Cygnus. It is Barnard 150 and next to it is the Fireworks galaxy NGC6946. The ASI2600MC was set at gain 100 (offset 30) and kept at -15°C. 19 x 10 min, so 3.2 hours. Four nights ago I aimed at Barnard 150 with my double rig with the Esprit 150 (with ASI6200MM for Lum) and Esprit 100 (ASI071MC for RGB). Collected 6 hours of Lum and 4.5 hours of RGB. The RGB data from the Esprit 100 was quite anemic and nowhere near as colourful as what I had caught with the RASA, obviously a result of f/5 vs f/2. So instead of making an all Esprit image, I decided to add the lum to my RASA imade. And here it is with added Esprtit 150 lum (about 50%) to the nebula. It did improve it significantly. Like Olly @ollypenrice I see nothing wrong with mixing focal lengths to improve the resolution of key parts of an image - I am mainly into this hobby to produce as pretty images as I can with the gear I have. Here is the post with the original RASA image:
  13. 18 points
    Hi there, starting to get somewhere with my C11 HD Edge. On the 22nd got this one of M1 Crab nebula, in h-alpha. Used the 0.7 focal reducer, bring the FL to 1960mm. The camera was an Atik 314L+ mono. The filter was a baarder 7nm. The mount was a Ioptron CEM120, guided off axis with PHD2.
  14. 18 points
    1,000 light-years away, this dusty molecular cloud is part of a dark nebulae complex within Cepheus Luminance with Epsilon 180ed, RGB with ED80 This is the first time I've really struggled using the ED80 to get colour data. I've attached the LRGB version, the L and RGB data. I've since devised a more elaborate way of aligning the two scopes, so the misalignment seen here wont be an ongoing problem, and there was some sort of cock up with the guiding losing a star, and then moving frames. Isnt there usually something with AP!! CC welcome. Adam
  15. 18 points
    I'm endlessly fascinated by this area of the sky; all the different elements packed into it is really remarkable. This is two nights worth of data. Camera has been turned 90º compared to my earlier shot with the 130PDS. I'm finding it difficult to process and have by now quite a few versions of it, with this being my best yet. Thinking of turning the camera back the 90º for another attempt, as that might be a better framing after all, but weather is as always looking sketchy for the coming days. Total integration time: 205 x 3 min = 615 min / 10.25 hours at -20ºC. Darks, flats & bias used. Details: SW 200PDS w/SW 0.9 CC, HEQ5 Pro w/ADM saddle & Rowan belt mod, Canon 700Da cooled, Staraid Revolution autoguider. Stacked with DSS, processed with Astroart 6 & Topaz DeNoise. Thanks for looking.
  16. 16 points
    Hi everyone I had a bright Newtonian for the weekend, so took advantage of the new moon with a galaxy. It seems a bit too blue, but that's what Siril's photometric database gave. TBH, to make it look nice, I increased the colour saturation. Maybe too much. Thanks for looking and Newtonian users, please post your shots of the same. Comparisons help us a lot. 700d @ ISO800 3 hours
  17. 16 points
    Lovely view to the South West tonight. Mix of different exposures to get some detail on the moon and not underexpose the planets. Quite like doing these wide field shots
  18. 16 points
    Not exactly a rare subject for imaging - but at the same time.....not very common either. Full info @ https://www.kinchastro.com/sh2-112.html
  19. 16 points
    Hi everyone The last of the new moon images for this month. It's a bit on the pastel side of manley-wax-crayon colouring but you can see the difference between the reflection and the emission nebulae at least but I really hate when the foreground stars FWOABW 'push away' the nebulae, refractor style. I think I've traced it to a rather heavy hand on deconvolution... Still thinking. Thanks for looking and please do feed back on stars, colouring or WHY. 700d @ ISO800
  20. 15 points
    Hi, this is my first image trying to get the Hoo Palate in APP. Telescope WO STAR 71..1st gen. Camra ZWO 1600 mc-c 130x300s ..Optolong L-eNhance filter. 5 imaging sessions Sept/Oct. Bob.
  21. 15 points
    My days for solar imaging are coming quickly to an end due to winter. This may be my last image of the year, (hopefully not!!) A very spectacular prominence!!! (unprocessed with 300 stack) (sloppy process)
  22. 15 points
    Well Covid-19 put a massive dent in my imaging this year, since my kit is in Spain and it's been really hard to get out there. This is the first new work I've done this year, about 11 months after my last one. So... how is everyone anyway ? Here it is: Bubble Nebula (NGC7635) by Stuart Goodwin, on Flickr About 20 each of 900s Ha, Oiii and Sii, darks flats and bias, equipment as per sig, Pixinsight. I went for the (Ha, Sii+Oiii, Oiii) palette since I wanted something closer to natural colouring than the Hubble palette gives, especially since the different bands are quite different weights in this target. To be honest, getting a colour palette I liked was quite a struggle until I eventually had the idea of nudging it a little bit on the hue wheel - after that and some PI curvetool trickery, I'm quite pleased with the result (depending which monitor you believe, of course) As an aside, we finally managed to get functional wifi and Netflix in our remote valley in Spain, so I think I managed to send myself half doolally binge-watching re-runs of The IT Crowd while capturing this. The Bubble Nebula (NGC7635) is an emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from a massive hot young central star 44 times the mass of our sun. The nebula is in a giant molecular cloud which limits the expansion of the bubble while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel. Hope you enjoy ! Stuart
  23. 13 points
    This observation was made quite early in the evening when Mars hadn't risen high enough for a stable view. At first glance there appeared to be very little to see but some vague shade, but with prolonged observation the detail started to show. I've observed Mars for many years and its probably my favourite planet as its a challenging object that generally rewards the patient observer. This apparition however, and despite it's large apparent size, the planet's normally obvious features seem to be quite subdued. I don't follow Martian weather reports but may be there is some fine dust in the planet's atmosphere that's acting like a veil? Whatever the reason, I've struggled this time round to get a real wow night on Mars. The sketch below shows the view of Margaretifer Sinus from last night. The sketch was made using a prism diagonal, so you may need to flip the image to relate it to a reflector view.
  24. 13 points
    Due to repeated thefts in my area I have come to realize this hobby will not be very easy to to enjoy in my own back yard However I am fortunate enough to own a cottage in the mountains, about a 5 hours drive from where I live. It has fairly dark skies, the milky way is pretty clear after a minute outside in the dark. I had a couple of days there last week and brought my gear. I was able to sort out a few hardware and software issues, and got some targets imaged: Andromeda, 2 nights L+R+G+B+Ha Spent a lot of time processing trying to integrate the Ha data (using pixinsight and a little cheating in Gimp): Elephant's trunk Nebula (one night) Ha +Sii +Oiii Bode's & Cigar (and quite a few more?) Galaxies (half a night, the meridian flip failed horribly in the middle of the night) L+R+G+B
  25. 12 points
    Hi Guys Here is around 8 minutes of data taken on the night of the 11th October. Quite a bit of Albedo features have been resolved. Details of equipment used etc are on the image. Best Wishes Harvey
  26. 12 points
    Had a similar neighbor a couple of years ago. I asked really politely to turn off the lights, even invited him for a session, which he rudely declined. Then I just set both of my scopes and cameras facing various windows of his house for a couple of days. When he came complaining, I complained back that since I couldn't stargaze then I would just.... gaze. It's been 3 years and those powerful bulbs haven't tasted electricity since.
  27. 12 points
    I imaged a few doubles last week from home through my TEC refractor. These were all 50 x 10s taken with a ZWO ASI071MC-Pro camera. First is 57 Aql, then 100 Her, followed by Eta Cass. (Achird) and finally Zeta1 Lyr. Eta Cass (Achird) is my favourite double at the moment.
  28. 12 points
    Last Sunday my neighbours asked when was the best time to look at Mars? Which I interpreted as them having read about Mars' current close proximity, knowing I have telescope(s), and requesting a good look. Naturally I obliged, and suggested Tuesday evening, school night notwithstanding, as it was forecast clear. It was also due to be Moonless and clear, so I after finishing work I set up 2 scopes, my 12" on the big AZ-EQ6 and my little 6" Intes on the Stellarvue M2. I drew up a short list of other targets that might interest them aside from the Red Planet. They turned up, and we quickly turned to Mars. As I had expected, and although they didn't admit it, I suspect they were somewhat underwhelmed by the view. In my experience, it was a good view, seeing was quite good. Dark regions were easily on show, but I think they were expecting D Peach or Hubble. Oh well. This was exactly why I had other targets in mind. I directed them, naked eye to begin with, to the Andromeda Galaxy, then we turned to binoculars. They were more impressed by that. Next, and from their point of view this was the absolute star of the evening, was M13, the Great Hercules Cluster. They'd never heard of Globular Clusters, and I'd deliberately not told them what we were about to see. First, like M31, we just about were able to make it out naked eye, as a "something" brighter patch maybe not a star, 2/3rds the way between the two stars on the right of the keystone. Then we brought binoculars to bear, and they definitely saw it was not a star, but a circular graduated haze, more or less bracketed between a couple of brighter stars. Finally I let them look through the 12". They were absolutely blown away. It was so gratifying. Uranus came next, an obvious bluish disc. They liked that, too. Albireo, aka The Jewel of the Sky, was too high, I know from experience my 12" newt would've suffered "mount-strike", so I chose instead Almach which is better in two respects: its colours are deeper, and it's a true binary unlike Albireo. They loved the colours, and I never tire of Almach. Finally I put in my Panoptic 35 giving me 43x and 1.6 FoV, and we headed to The Pleiades. We first of all tried to discern as many stars as we could naked eye. Then through the eyepiece, they loved the field of super-bright stars and inky background, such fine jewels. So it was an unexpected neighbour-demanded observing session which I almost certainly would not have done without the prompting. It was interesting that Mars was the initial motivation but disappointed them, and that M13 was the real, er, star of the show: I always suspected it should be, as it's so unexpected. And we saw lots of meteors too, mostly funnily enough coming from the South West, not sure what xxx-ids they were. Cheers, Magnus
  29. 11 points
    Hi, I've been getting really wound up with the weather spoiling my Mars fun. Last night looked promising but as soon as I set up it clouded over again I sat outside patiently waiting and managed 5 runs in the cloud gaps. So glad I stuck it out. This is a quick process - autostakkert / registax / PS6 of 1 of those runs. 3 mins approx 18000 frames stacked best 5% My best ever Mars (so far) C8/2x barlow/zwo adc/zwo 224mc
  30. 11 points
    Yet another image of Mars. I haven’t done any planetary imaging for years so this is a bit of a voyage of rediscovery for me. Plus I don’t really have the right kit for it. A Canon 450D is not the best camera for the job, but EOS Backyard makes a reasonable job of getting a video from the camera. The image was taken with my Skywatcher 200mm reflector with a x5 Tele Vue Powermate. This image is the result of an evening cramming up on videos of how to use Autostakkert and RegiStax - also both downloaded this evening. I’ve seen much better images from others on SGL, but I’m reasonably pleased with this one. The seeing was pretty dreadful on the 14 October and the planet was shimmering all over the place. So what I see in this image is far more than I could see through the telescope. This image is the result of stacking the best 10% of a 1000 image AVI movie. I’m wondering is it possible to combine several movie files in Autostakkert to extract more image files? Suggestions for improvements to processing welcome too. Thanks.
  31. 11 points
    Well, then. I thought It'd never come to this... I've shelved my telescopes! Quite literally The big gun has been living in its original box on the garage floor for all of its seven years. I kept threatening to sort it. Anyway, the garage is a tip and I've got shelves and shelves of tools and equipment from a previous life of working in trades all along the wall opposite. It's death trap. I've had some nice lengths of good 2 x 1 and some off cuts of half inch ply left hanging round from some jobs long finished. Perfect for some sturdy shelves, unrefined shelves at that! I went for the industrial look because I don't have any patience for getting too involved and, anyway, I'd have to dig for a day to find things like routers and planes... Due to the consumer unit being in the way, the lower shelf is shorter but perfect for the Celestron 127 Mak OTA. I think I'm going to sell on the Celestron SLT mount and tripod that came with the Mak, I just don't use it; not an Alt-Az kinda guy
  32. 11 points
    Skies cleared for a short while early evening. Just got 3x 5min abd 3x 3min subs using an IDAS NB-1 2 inch filter with the ASi 533 MC Pro. Image uncropped, processed in PI only. Overal image scale reduced for uploading.
  33. 11 points
    I’m getting back to astro imaging after a very long time away, this is my first real attempt with a cooled camera for years, the newly acquired (only this week) ASI294MM Pro. A 60min capture in Ha, in 10min subs for the main structure and some 30sec subs for the core, early hours today. Darks and Flats calibrated. Next will be OIII captures, weather allowing.
  34. 11 points
    Cloudy morning then poor seeing in the sunny bits. Cleared up a bit in the afternoon but never good seeing. Used the PST BF a lot today. The Lunt B1200S2 just wasn't bringing out the detail. All B&W. Variable processing.
  35. 11 points
    Google Pixel 4 phone picture in Astrophotography mode. Taken at Galloway.
  36. 11 points
    Pretty stable conditions on this night which allowed nice views of the high altitude clouds on the limbs and the polar hood. Elysium Planitia was easily visible in the lower half of the image, looking like a bright bulge and Elysium Mons can be seen as a slightly brighter spot in this bulge. All round a cracking night. Fingers crossed for more in the coming weeks. Clear skies all.
  37. 10 points
    Mars, looking through quite a bit of haze/mist and cloud - which dulled down the image and seemed to help 4" Refractor, 21:50BST, x217
  38. 10 points
    Solis Lacus dominates this hemisphere. Olympus Mons at lower right. Jittery seeing and windy conditions again. Peter
  39. 10 points
    Had a quick sol session this morning, the seeing was pretty awful and it was also very windy. Got these images of today's interesting bits.
  40. 10 points
    Finally the clouds moved away and Mars came out! Here is my contribution to Mars opposition gallery. Fingers crossed for the coming weeks. Data: Meade LX200 10" Classic Basler acA1920-155um Baader Hyperion Zoom 2.25x Barlow lens Baader IR-Pass Filter 1¼" (685 nm) Basler Pylon5 64-bit for capture AutoStakkert! + RegiStax for processing It is my first time dealing with high resolution imaging (returned to hobby astronomy after a 14 years hiatus...), so comments and suggestions are extremely welcome! Clear Skies Fabio
  41. 10 points
    I worked hard to bring out the dust on this and I am not sure it really works that well - maybe looks a bit overprocessed? Comments and suggestions for how to make it better please. SW Evostar 80ED, EOS700Da, NEQ6 58 X 240s ISO800 ( should have been more but mist!)
  42. 10 points
    Hi everyone, Thought it would be nice to share an animation of Mars I made after last night's imaging session. The video was captured during a 4 hour time period. From my location (61 degrees North), the max altitude of Mars is around 33 degrees. The temperature was around -1 Celsius and the seeing conditions were, surprisingly, pretty good. In the beginning you can see Valles Marineris moving to the shadow and if you pay attention, Olympus Mons should also be visible near the end of the video. The scope used was Celestron CPC 800 and the camera ZWO ASI 120 MC-S. Initially I tried imaging with a Barlow but found that the native 2000mm focal length gave the "cleanest" results. Clear Skies, Tomi
  43. 10 points
    3 hours of Ha and 2 hours of OIII. Taken with dual WF imaging rig with 200mm f4 lenses (Asahi Super Takumar SLR vintage lenses) and ASI1600MM-Cool cameras and Astrodon 3nm filters. Guided with 200mm lens and ASI178MM camera. Ha exposures 600s and OIII 1800s. Calibrated with flats and darks. Processed in PixInsight. Hoping to capture more data when we get some clear night sky!
  44. 9 points
    Currently unable to carry out astronomy following a knee operation, I'm using the time to reprocess some some old images using my embyronic PixInsight skills. It's early days but I have to say PI is growing on me!
  45. 9 points
    Been away in Cornwall for a week, just outside of Marazion. First night there was nice and clear and i had the benefit of a roof terrace/balcony so set up the Star Advenurer, Sony A57 and Minolta 50mm lens. I was having issues polar aligning initially but think i was somewhere near, however i then had issues with power supply intermittency. Its either a dodgy USB cable or the socket on the SA itself. Anyway all i managed was 18mins worth of 20s shots at iso 3200. If i had more dark nights i would have had another crack but alas none were as good as the first night. Visually, naked eye was a treat too tbh. Milky way easily visible and M31 with averted vision also. I used DSS, Startools and Topaz to end up with this effort. Thanks for looking.
  46. 9 points
    If you follow the thread What Did the Postman Bring? (esp @PeterW who requested a report), you may have noticed that I received a new Televue Paracorr Type 2 Coma Corrector yesterday, for use with my SW 300p f/4.9 newt. And what's more, the very day it arrived was forecast to be a perfectly clear night. Amongst my eyepiece collection I have a Televue Panoptic 35mm, which in theory was for use as a widefield eyepiece but whenever I have used it, such as to show the Pleiades to my neighbours last weekend, I've been disappointed by the severe coma-stars starting not far from centre-field. I've even been considering selling the Pan 35 for that reason, and have rarely used it. So I was especially curious to see how much of a difference the Paracorr would make. I set up last night as usual, without the Paracorr to begin with to have a direct front-of-mind point of reference, and after alignment I slewed straight to M45. Sure enough, the stars were spangly and the view was annoying. I put in the Paracorr, rotated the slider to setting "G" as per instructions for the Pan 35, inserted the eyepiece itself, and with a sense of trepidation I took a look. I no longer plan to sell the eyepiece. The view was suddenly wonderful. A field of extremely bright, pinpoint stars all the way to the edge, just as M45 should be. Sure some diffraction spikes on the very bright ones but I don't mind those. I went on a tour of open clusters, M37 with its central red bright star, M36, and a host of fainter but no less more-ish clusters in the vicinity, using my Nexus DSC and its brilliant "Tour" function set to "within-10-degrees". It's expensive but it has completely transformed wide-field viewing with my medium-sized newt. Cheers, Magnus
  47. 9 points
    This arrived, to go on my 300p:
  48. 9 points
    Another early morning perspective observing Mars. Interacting between 7mm and 5mm DeLite with a OO UK VX8L.
  49. 9 points
    Been after a copy of this for a while. Should keep me out of trouble for a while!
  50. 9 points
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