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Showing content with the highest reputation since 01/10/20 in all areas

  1. 51 points
    We will soon apply a significant update to the SGL platform but before we do we want to remind everyone what SGL is, and is not. This is important because it underpins the way SGL is constructed and moderated. What is SGL? SGL is a positive, safe, friendly online community where you can discuss all things astronomy with like-minded people. Whether you are beginner or professional, visual astronomer or astrophotographer, armchair astronomer or cosmologist. SGL is for you. SGL is not Facebook. SGL does not amplify negative emotion, does not insert dodgy video into your timeline and does not lock you in. There are no fake members or bots. No fake news or click-bait. You are not wrapped in a filter bubble then sold to advertisers (our sponsor pays the bills). At SGL your worth is not determined by how many followers or 'likes' you have. So if you enjoy drama, dissent and controversy. If you enjoy discussing politics and social injustice. If you enjoy constructing carefully worded insults. If you like sharing photos of your cat or breakfast. SGL will not suit you. SGL does however have a Lounge area for non-astro discussion. This is separate and distinct from the astronomy boards. Please help us keep it this way. Best wishes, SGL ADMIN & Moderators
  2. 50 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.
  3. 47 points
    Hi guys It took 9 nights between late August and early October, but I finally got enough data to complete the big mosaic of the Cygnus area i'd been wanting to do for ages. In a rare period of good weather, at one point there were 4 clear nights in a period of less than a week. Suffice to say, that was a rough week and by the end of it i was barely hanging by a thread due to the lack of sleep! I'm committing the cardinal sin here of posting late at night after spending hrs of processing (for about the 3rd night in a row) but i think it's finally time to stop looking at it and just post it lol. This was done with an Atik383l+ and two vintage lenses, a Tamron 135mm F2.8 and a Zuiko 50mm F1.8 - total outlay just £60 all riding on a HEQ5-Pro. The 135mm was used at F4.5 to do the 9 panels of Ha. Each panel is 108 mins (9 x 12mins). The 50mm was used at F4 to do a single panel of Oiii and Sii. The Oiii is 7 hrs of 20min subs, and the Sii is just shy of 4 hrs, also in 20min subs. APP used to put the mosaic together, which it managed flawlessly. PS used for everything else. I may end up downscaling it a tad, not sure just right now. Need sleep! Interested to hear what you guys think. CS. ps - It's a big image so be warned. The FOV is about 20 degrees wide!
  4. 46 points
    Sales of astronomy equipment during the pandemic continue to be significantly higher than normal while manufactures struggle with materials shortages and fewer shipping channels. Obtaining reliable ETAs from manufacturers and distributors is understandably very difficult. Even when they do have an ETA, it often changes overnight and it is not unusual for entire shipments to sell out before they dock. We believe this perfect storm will continue at least until a vaccine is found and made readily available so, with this in mind, we have made some changes at FLO that we want to share with you: We have employed five additional staff (two in the warehouse, two at the Helpdesk and one in the workshop). You might already know one of our new staff, Dave Eagle We have invested significantly in stock. When stock is available, we buy it. Lots of it! So whilst stock is scarce our warehouse has never been so full. We have also made a significant change to our website's stock availability information. We now share precisely how many of each item is in stock at our warehouse. (Over 95% of products sold at FLO are dispatched from our warehouse. We rarely drop-ship). Thank-you sincerely for your continued support Alex, Andy, Annette, Ann, Cody, Dave, Grant, Ian, James, Katie, Lisa, Martin, Matt, Rob & Steve.
  5. 37 points
    After being clouded in forever, it finally cleared and I got as much going as I could (barely) handle. So as I was shooting away on NGC6914 with my double Esprit rig in obsy 1 (posted earlier today), I got the RASA 8 up and running again on my old NEQ6 in obsy 3, aimed at some dark nebulosity near the Iris nebula. Had the ASI2600MC set at gain 100 and -10°C. Got 235 x 2 min so 7.8 hours, which is a lot of photons at f/2. Took a few hours to stack in PI. Most processing done in PS. I think there is same drama in the image where dark forces appear to head toward the loverly Iris. I believe that nasty bunch are also known as LDN1152, LDN1148, LDN1158 and LBN468
  6. 37 points
    This is my biggest ever project, something I never thought I was gonna be able to do. A 15 panel mosaic of the North America nebula region shot with both my setups at the same time. I used my ASI294MC Pro with the AT106 to shoot Tri-band and Ha and my QHY183M on the TS65Q to shoot Ha and Oiii so the total integration time is 150 hours but the imaging time is half of that. Before the mosaic I have the cameras swapped between the 2 scopes but I changed them over for a closer field of view and pixel scale between the 2. I started shooting the mosaic in April this year and I finished it last month. Using APP, I extracted the Ha shot with the 294 and Ha filter and the Ha and Oiii shot with the tri-band. After that I stacked all the Ha and Oiii for each panel and blended them all in APP. I used pixinsight Starnet++ to remove the stars from both Ha and Oiii, I blended them into the HOO image and worked on it until I was ready to put the stars back. I'm really pleased with the result, it might not be perfect but I can say that it's my best astro image so far. I hope you like it too. Emil Astronomik 6nm Ha Clip-In Filter: 450x300" (gain: 200.00) -15C bin 1x1 Baader Planetarium O3 1.25" 8.5nm: 450x300" (gain: 11.00) -20C bin 1x1 Baader 1.25" Ultra-narrowband 3.5nm Ha: 450x300" (gain: 11.00) -20C bin 1x1 Altair Astro triband: 450x300" (gain: 200.00) -15C bin 1x1 Integration: 150.0 hours Darks: ~50 Flats: ~30 Flat darks: ~100 Bortle Dark-Sky Scale: 6.00 Mean SQM: 19.14 For the 158mpx, full resolution (11972x13212) photo please follow the link to my astrobin account: https://www.astrobin.com/full/1mtzac/0/
  7. 33 points
    Well, its been a couple of weeks before I was able to go out and grab some OIII for this one (always a challenge due to localised LP) - but its now in the bag and I've spent the morning processing it (still feeling pretty tired though.....lol). So, the million dollar question - can this lens make a pretty photo? Yeah, I think so Had to crop a little bit out because of a medidian flip on the OIII, but I didnt lose that much. While I was there I also topped up the Ha luminance layer for a bit less noise in the outer regions. One other note though... being as the lens body is almost entirely made of metal (and can hence get quite cold) - you do need to go out and adjust the focus after about 45 min from the session start... nothing unusual or different from any other telescope or lens really. 19x900 (Ha_L), 8x900 Ha_R, 8x900 OIII_G&B - Modified cannistra biclour process Askar ACL200, QSI6783, NEQ6 Thanks for looking! Ha luminance layer:
  8. 33 points
    Not the easiest target - not the best image of it.....but happy to have tamed all the stars in this area.....too may to count This is 8 hours Ha + 7 hours each SII & OIII = 22 Hours.
  9. 33 points
    I received a ZWO 462MC earlier in the week and Thursday nights clear sky was a chance to give it see how it performs. It certainly managed a faster frame rate than the 224MC but I was unable to get focus in colour. IR was just fine for focus. I'm not sure if this was due to seeing or what but the colour images looked to have a lot of colour fringing presumably from the atmosphere. I was also using a new 5x barlow but that did great with the 224mc earlier in the week. The animation is approx 4 hours in IR. Stills about 30 mins derotated. All with 250PDS, 5x barlow and 462MC IR-RGB IR:
  10. 32 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! :)
  11. 32 points
    We have applied a number of updates over the years and routinely move discussions in an attempt to keep SGL's discussion boards on topic. Most understand the need to keep the forum up-to-date, secure and on topic but there are always a handful of members who resist change and resent moderation. Sometimes they leave. When this happens a new forum invariably pops up to cater for them (Astronomy Shed, PAIG & Inside Astronomy are past examples). This used to upset us but over the years our skins have grown thicker and we now recognise it is an inevitable part of running an astronomy forum. We cannot please everyone. Recently after some moderation (intended to keep non-astro discussion separate from astro discussion) we upset and lost some good members and, right on cue, a new forum has appeared. https://www.backyardastro.org We don't enjoy losing members but we do want the SGL community to be a happy one so if you conclude SGL is no longer a good fit for you, we suggest you try the new forum. There will be no hard feelings (though we will grow resentful if you use your SGL membership to recruit members). HTH
  12. 31 points
    Hi all, this is sh2-126 in Lacerta. If you locate Andromeda and trace a line towards Deneb it's about half way. This is a large star forming region approx 1200 light years from earth. The source of it's ionisation is the intense ultraviolet radiation of the star 10 Lacertae, a blue main sequence star. I had great fun collecting this data, on the first night I noticed what looked like a pinched mirror in the images as they came through so I had to perform surgery with the scope on the mount. I removed the primary mirror, loosened the screws on the mirror clips and put everything back together. The scope held collimation throughout which is a testament to how well built the Epsilon is. The battles continued on through the rest of the data collection with cloud, humidity and fog all adding to the fun, oh and not forgetting a lovely new floodlight my neighbour installed that points right at my scope. Data was collected with an Asi2600mc through an Epsilon 130. 6 Panels and a total of 24 hrs rgb with 10 hrs of Ha taken with a Samyang 135 and Asi 1600mm. If anyone is ever thinking of imaging this be aware it's quite feint and I found the image is nothing without the ha. Image is uploaded as .jpg and reduced to .5 to keep the image size reasonable. Hope you like it, Richard.
  13. 31 points
    Hi. full ASTROBIN CTB1 is very cool and medium dim SNR G116.9+00.1 in Casiopea. Below I caught 58h in Ha, OIII and RGB 70x1200s Ha 80x1200s OIII RGB average 8h QHY695A, Ioptron CEM60-EC, TS APO100Q Have a nice trip through the photo Tom
  14. 30 points
    During a recent check up at the quacks I mentioned to him that I was into astronomy and he said well Mercury is in Uranus, I said NO! that's Astrology!! He said no, the thermometer has broken..... In the last 7 years the winter weather has got noticeably worse here (NW Scottish Highlands) but the summers have got better. Bad for astronomy but great for a seasonal leisure business like mine It enables me to buy all manner of nice things to not use over the winter!!!
  15. 30 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
  16. 30 points
    And I'm not just talking about the night sky... I thought some of you fine folks might like to read about my 6 days spent in a cottage by the Loch shore in Onich, near Glencoe in the Scottish Highlands. To say I was excited to go to my first truly dark spot in an understatement. To say that I was expecting the worst with regards to the weather would also be true. I guess the universe liked me that week as we got 4 out of the 6 nights crystal clear. So, what was the sky like? Well, I would say that the milky way was a bold presence and not just a fuzzy, dim patch. I could clearly see structure in the Cygnus area by eye and it was pretty much horizon to horizon (well the mountains got in the way on one side) I was outside from about 11pm to 3.30am and spent most of the time just admiring the view and watching the meteors. The constellations were a bit harder to identify, but only for a second or two. It was so dark that I could clearly see the MW within seconds of walking out the front door of our brightly lit cottage. My wife and I drove there from the South East of England and so I had brought along my star Adventurer Mini, lenses and camera on the offchance the skies were clear. The problem I had was that I hadn't planned what I would image. And found myself changing my mind so many times after aligning the camera, focusing and taking a few subs. I started with the Iris Nebula as I really want to image that and everyone says it needs very dark skies....after taking about 15 30s exposures, I thought that I should really take a widefield milky way, so swapped lenses, re targeted and set the timer...after about 40 mins I decided to try the Veil, blah blah blah...then noticed Taurus was high up and figured I would probably get a better result with the Pleiades, so changed again. Long story short, the same thing happened the other nights too and eventually I just decided to take what I could and just experiment on targets I'd images from home, to see the difference. I also took a few of the horse head nebula (10 30s I think), just to see if it would come out. It was just a quick test. I was astonished to find that yes, the HH nebula could be seen in a stack of 10*30s exposures. Sadly, the majority of the last evening, major dew defeated me early in. It appeared again within seconds of me wiping the lens dry. So I gave up and just looked through my binoculars. We had spent one night in a small hotel in the middle of nowhere in the lake District on the way up north, where I was also blessed with clear skies and spent the night in the car park of the hotel, unable to even see my feet, but I struggled with my equipment and didn't get much that night. To be honest. Yes, I guess some might call me silly for not planning better and taking advantage better of a B2 site, but I really don't regret anything. I had stunning views and had fun. So what if I only got 3 images out if the week. I completely understand now why you guys say that the best way to improve images is to go to a dark place. I was astonished at how much more detail came through. Here are the three images I took. I don't have stats for each one on hand now, but all three were about an hour total exposure time each. I know that's not nearly enough of course, but considering that and the fact that I only have an f5.6 70-300mm lens, a cheap 4000d and a star Adventurer Mini, I think they are decent. Sorry for the rambling post. Cheers
  17. 28 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
  18. 28 points
    I apologise in advance for all the pictures, just want to show it all off. My new Taurus T350 has finally arrived from Poland after what seems like forever. As you can see from the pictures there was some courier damage caused but I immediately contacted Adam at Taurus who tells me I should be getting a new truss set. It is still useable but of course that is not the point. Optional extras added to the scope were heated secondary and adjustable cooled primary. Upgraded primary mirror to Supremax glass which also boosts reflectivity (There is a load of blurb but it goes over my head). Counterbalance weights. A moonlight 10/1 focuser. Covers for all the parts and finally DSC system. I wasn't going to bother with the Digital setting circles but after chatting to Peter Drew at the astronomy centre I changed my mind and added it. It moves around like a dream, so smooth. The AZ bearing has fully adjustable teflon pads for adding friction although it actually runs on 6 bearings. Nearly forgot to mention it comes fully shrouded and flocked. It really is a lovely bit of kit that needs using asap haha Steve
  19. 28 points
    Also includes: v419 Cephei. Total integration: 3280 minutes/~55 hours (*632 x 300s for O3 + **60 x 120s for OSC). Cameras: *QHY163M (16mp mono) and **QHY247C (24mp OSC) CMOS cooled to -20 and -15 degrees C. Telescopes: *Takahashi FC100DF Steinheil fluorite doublet and **Stellarvue SV70T triplet apochromat refractors @ f/4.9 and @ f/4.8. Reducers: *Takahashi FC-35 (0.66x) and SFFR70-APO (0.8x). Mount: Paramount MyT. Filters: 1.25" Astrodon 5nm Ha, 3nm O3, 3nm S2 and **2" Baader UV-IR-Cut Software: TheSkyX Pro, Sharpcap, PixInsight. Inline images with reduced quality uploaded to the forum. Full resolution images of all versions are available at https://www.astrobin.com/jdaa90/ and of the primary image at http://ram.org/images/space/scope/1.4+7.4.5+6/ou4_c_orgb_632x300+60x120_3280m_55h.jpg The Squid nebula (ou4) occupies over one degree of the night sky, representing the largest angular extent ever found in a planetary nebula. Known colloquially as the giant squid nebula, it is physically nearly 50 light years across. This bipolar nebula could be one of the nearest of its type known, though its possible planetary nebula nature needs confirmation. Even though it is big and close, you're not likely to find it easily. It is an extremely faint nebula emitting primarily O3 signal and resides within the larger Flying Bat nebula (not shown here, yet) which tends to overshadow it, making it a challenging target to image. The nebula is created by the outflow of material driven by a triple system of hot, massive stars catalogued as HR8119 (blue hypergiant) as well as the pulsating variable star v419 Cephei (red supergiant) seen near the center. While their shapes do their names justice, to me, the Squid seated within the Flying Bat more resembles a hand holding an infinity stone (viewed sideways). This is the first image of my Flying Bat and Squid project/series, which became a huge undertaking for me, ending up with a total of more than 131 hours in the final integrated widefield image of both objects and a series of three main images with a few versions of each depending on the data set used for the integration. In the first image, I am showcasing the Squid nebula by itself using only the O3 filter data, with and without RGB stars. The mono Squid imaged with the Takahashi FC100DF consists of ~53 hours of total exposure in O3, making it my single longest total exposure of a target with a particular framing with a specific filter/scope/camera combination. The RGB data collected using the QHY247C with the SV70T adds another two hours to the exposure. The total integration for the version with RGB stars is ~55 hours. I also captured another 5.5 hours of O3 data using my SV70T which is present in the final image in the series but I haven't created a separate Squid only version with that integration yet but I might if I get around to it. There are six versions of the Squid only framing at https://www.astrobin.com/jdaa90/ --- the difference between the two monochrome versions of the Squid is the application of HDR Multiscale Transform which reduces the halo on the central star as well as the amount of data used: (A) is based on the full ~53 hours whereas (B) is based on the best 40 hours. (C) and (D) are corresponding versions that combine O3 in the blue channel with RGB stars along with changes in the amount of saturation and brightness. Similarly with (E) and (F), but the Squid is in monochrome mixed with the RGB stars background. After doing different versions of the Squid by itself, I worked on a narrowfield and widefield versions where it is situated between the wingspan of Flying Bat (coming soon). I started with data from the FC100DF/QHY163M combination which results in a total exposure of 78+ hours for SHO. The SV70T/QHY163M data used for the widefield framing representing another 51+ hours was also integrated in. The RGB data using the QHY247C with the SV70T adds another two hours. The total exposure of the final image with the narrowfield or widefield framing is 131+ hours, my longest to date! As always, thanks for looking! --Ram
  20. 27 points
    A windy session with jittery seeing, but still managed to get some detail Can see the central crater on Olympus Mons just. Solis Lacis at upper left. Peter
  21. 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
  22. 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.
  23. 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
  24. 25 points
    I am putting the data here if I can as a tiff if anyone would like to play and show me how good the data is. my effort is I am sure poor compared to what can be done, I would just like to see if I am near decent. I don't have a way of doing gradients and this is important so bear that in mind. Not always hit the spot as you can see and some of the data is with a first quarter around though not that near. This is 180x 4min with only a darkmaster no other calibration frames. It is DSS 95% selection so a bit less than 12 hours. Autosave001 copy.tif file My effort Hope you find I did a decent job with at least the capture. Alan
  25. 25 points
    Last night's view with my 180 Mak; ADC, ASI224MC, Baader 1.4x Barlow, 2000/10000 frames processed in Autostakkert and PS. The seeing was good, or a little better, although the gusts of wind proved a bit of a challenge. The N Polar haze and the bright haze patch on the SW limb were easily visible visually as well as on the image. Chris
  26. 25 points
    My first ever attempt at creating a map of Mars. Made using images I've captured between 7th August and 27th September this year. I think I need a few more consistent images to hide the joins but with our current weather who knows when that will be! Thanks for looking
  27. 25 points
    Quite pleased with this - I did take some other subs to make a mosaic but cant get it to work and to be honest, Im happy with it as is! LRGB, 20 subs for each filter all 180s
  28. 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 .
  29. 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.
  30. 23 points
    The night was unexpectedly clear, so I set up the C8 and got what I think is my best Mars image so far. Still processing some other SER files, and clouds have now rushed in, so the fun has stopped, but still very pleased with this image. Stack of 2,500 out of 10,000. Stacked with AS!3 and wavelet sharpened in Registax.
  31. 22 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:
  32. 22 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
  33. 22 points
    After 2 weeks of cloudy skies, the heavens cleared for me on 6 October allowing me to grab some data for the below image of Mars just a few hours after it's closest approach this apparition and in fact for several years to come. I say cleared, but in fact I was constantly dodging passing clouds with several video runs having to be aborted and restarted, but I got there in the end. Seeing was variable sometimes quite good, but other times more challenging, but I would say fair overall. Most of the relevant capture details are on the annotated image. Capture was using FireCapture with the ASI290MM camera running at 13ms (~75 fps) for each filter, gain being adjusted to maintain a consistent histogram (50%) for each filter. The image comprises the best 30% of each AVI with me shooting 5xR and 4xGB, the clouds eventually shutting me down during the 5th G. I also captured 5xIR, but decided that using the 5xR stack as a luminance was slightly better than using the 5xIR for this image, so it is an R-RGB image. I have also attached the mono IR image stack for comparison. Thanks for looking.
  34. 22 points
    This is an image taken on the morning of the 3rd of October, between 00:30 and 05:47. Using two scopes I was able to gather just over 5 hours data each channel Ha and Oiii. Stacking done in APP and processing done in PS. 98-99% moon during data capture.
  35. 22 points
    Just a quick report. After 3 days of more or less constant rain and cloud here I have a reasonably clear patch of sky over me and I've stuck my Tak FC100 out to catch Mars boasting a 22.5 arc second disk. Steady seeing is enabling 225x - 300x to be used to real effect and the surface details are outstanding I feel. The south polar cap has dwindled to a tiny spot of white now. The southern half of the disk is a mass of dark features with a clear pale rift slicing diagonally though them around the central meridian. I think this is the Hesperia region ?. Further paler areas bisect the darker areas to the south with a darker region around the southern pole. Many other named features on show as well I'm sure. Quite possibly the best views of Mars I've ever had just now
  36. 21 points
    Quick process from tonight. Laptop driving me crazy running low on RAM and dropping frames even though system resources showed only 40% memory usage. Think I've probably over cooked the wavelets on this.
  37. 21 points
    Having stopped about 5 years ago, I decided I missed astrophotography (remind me why!?). Many teething issues with kit not talking (ASIair Pro) and whatnot but I finally managed to get out last night and get about 300 x 60s exposures on M45. As I'm using an Astrotrac at the moment I'm limited to about 2hours or shooting before it has to rewind. Trying to reframe the shot again to get it close to the first 2 hours is pretty much impossible, so I had to crop it a bit to get rid of the edges. Anyway, kit was ASI533 with Samyang 135/2 @f2.8. Mounted on the Astrotrac and captured with the ASIair Pro. Processed in Pixinsight (that was a cold sharp remind of what I'd forgotten too). It's not incredible, but I'm happy with it as a first image back. Lots of room to improve though! Next upgrade will be a goto mount lol. AZ-GTi maybe? Thanks, Phil.
  38. 21 points
    Neptune is close to the moon tonight and the lunar glare is affecting that part of the sky quite markedly. Despite this I tracked down the distant gas giant relatively easily with my 12 inch dob and have had an enjoyable 30 minutes gradually racking up the magnification until it's brightest moon, Triton, was winking shyly in and out of visibility. Neptune's tiny (2.34 arc seconds) disk seemed to hold up very well under high magnifications, eg: 400x or so. I also noticed that it looked a more intense blue tone than I've seen before. I have noticed that the moons glow can intensify the colour tints of a planet that is close to it (in line of sight terms). A few years ago Uranus was very close to the lunar limb and I had a similar effect at that time. I wonder what causes this effect ? If it stays clear (which looks a little doubtful to be honest) I'll have a look at Mars plus the supernova in NGC 514 a little later and possibly Uranus as well. Having had a quick look at Jupiter and Saturn and their moons earlier I might be able to have a 6 planet / 13 moon night (including the Earth and our moon of course) If I spot Deimos (unlikely with this moon) then 14 moons ! Voyager 2 image of Neptune and Triton from 1989:
  39. 21 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.
  40. 21 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.
  41. 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
  42. 21 points
    The seeing last night (8th Oct) was a distinct improvement over what I had for closest approach on 6th Oct. I had completely clear skies, no wind to speak of and it was cold (brrr), but who cares when you get your best result yet. This image comprises the best 20% of 7xRGB runs of 3 mins per filter, per run. It is actually an R-RGB image as the seeing was sufficiently good to reuse the red stack as luminance applied as 70% opacity in WinJupos, rather than using the 7xIR data that I also captured. In total there are some 87,000 frames stacked, which is more like 100,000 if I double count the R stack being used twice. The image is presented south up with the much reduced south polar cap just seen at the top of the image. The long dark region of Mare Cimmerium runs along the equatorial region, with the spike of Sinus Gomer that extends from it, clearly seen. Syrtis Minor is just rotating into view under blue clouds at the right limb. Blue clouds also lay over the north polar region. The bright red regions of Memonia and Elysium dominate the northern (lower) half of the image. Elysium Mons is seen as a bright spot approacing the central meridian above the north polar clouds, with the dark spot Cerberus seen above it. The largest mountain in the solar system, Olympus Mons, is the bright spot just rotating out of view at the lower left limb. The dark region below the south polar cap, Mare Chronium and the lighter mottled region of Eridania just above Mare Cimmerium, show several detail structures. Thanks for looking.
  43. 21 points
    Earlier in the year when my planned north america mosaic was a bit too low, I managed to squeeze in some data on the Eagle nebula. I was planning to make it SHO but cygnus was getting higher in the sky and I had to stop shooting the eagle and concentrate on the mosaic. Last night I had a look at the data and had a go at it even though I would've loved to have a bit more Oiii. So this is 69x300sec Ha with the ASI294MC and AT106LE, 22x300sec Ha and 39x300sec Oiii with the QHY183M and TS65Q Full resolution here https://www.astrobin.com/full/nc8rz1/0/ Emil
  44. 21 points
    Delighted to share some pics of the latest member of the Tak team here. Dizzy arrived today and is excited about first light.
  45. 21 points
    Software managed to tease out some reasonable detail despite poor seeing due to high speed jetstream overhead. Peter
  46. 21 points
    Seeing as Mars is at the closest approach to Earth for quite some time, I thought I would have a go at trying to image it. I had tried earlier this year with Jupiter and Saturn, and they didn't turn out very well, so I wasn't expecting much. However, for a first attempt, I'm quite happy with this! Although I wave some questions! I took the capture in ASICAP using a ZWO 290MC on my Skywatcher 150p (my refractor didn't give me enough mag and my SCT would take too long to cool as I only had a short window for clear skies!) I took a 180s AVI with the gain set to 180, exposure time of 5ms and turned the ADC on. I also used an IR cut filter. So, I took a few different AVIs, some with a RAW output, some not, some with ADC on, some off, and different exposure and gain settings. I noticed subtle differences, but is there any preferred way to do it? Should the ADC be on? Should I have the RAW output? Or not? Would be nice to get some tips from more experienced planetary imagers!
  47. 21 points
    Here's my first processed image using the ASI6200 with my FLT98. I've binned it 2x2 in software as little real resolution is lost. It's a centre crop to just show the galaxy. L = 3.9 Hrs total at gain 0, RG and B = 1.6 Hrs total each at gain 100 (3.2 x actual gain), and HCG mode. Sky brightness -21.34 using Unihedron. Processed in Startools. Small final adjustmests in Photoshop. I also tried blending in some Ha to Red but it just made the red patches brighter without really adding much so I left it out. Click for full size. Alan
  48. 21 points
    We had a rare evening of excellent seeing from the UK. With Mars at 40 degrees altitude and 22.4" diameter, lots of fine detail was recorded across the disk. Syrtis Major and Hellas region are central in the two images attached here. Peter
  49. 20 points
    Pretty good conditions last night, shot 4 RGB runs around 11pm. 3 mins each of RGB. 30% stacked and stacks derotated together to mid point of middle capture. The slopes of Olympus mons are very bright. Elysium mons is just about visible too as a bright spot in the red channel within Elysium Planitia
  50. 20 points
    After two weeks of cloud and rain, I was really pleased to get out tonight to image Mars. Seeing was reasonable too so managed to get some nice surface detail. Imaged using an Altair GPCam3 290C and TEC140 with 2.5 barlow. Processed with Autostakkert3 and Microsoft photo, best 5% of 4000 frames. Thanks for looking. Mars
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