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Showing content with the highest reputation on 09/11/20 in all areas

  1. After a too ,long hiatus (sometimes bad weather as well as life itself get in the way of astronomy) I finally can prsent some new work. Luckily on this occasion the seeing was outstanding. or at least well above average for my local conditions. All made with CFF CC300 f/20, ASI 174MM, baader IRpass 685 enjoy the images. Hainzel, Schickard, Schiller https://astrob.in/full/kx1ifw/0/ Copernicus: large 6 panel mosaic https://astrob.in/full/u60vbf/0/ Montes Apenninus, 3 panel mosaic https://astrob
    21 points
  2. Feel very lucky to have been able to image all of the planets (Mercury out to Neptune) this year along with the moon and the sun. These were all taken with my TEC140 along with my Altair GPcam3 290c. Thanks for looking.
    12 points
  3. Hi everyone, During the night of October 18th I have done some shot on this great nebula. It was the first time that I did it with my ccd Atik 414EX. I got the TSA 120 with the reducer. For this image, there is 10 x 180s for each sub in RGB + 10 x 10s :
    10 points
  4. Updated version with Comet Neowise added!!
    10 points
  5. I've recently had a couple of nights where Ive ended up with no data, just complications but good learning so never a waste. It was nice to finally have another session where everything came together and I managed another image I'm happy with. It wasn't the best of seeing with the moon light but I'm pleased with the result considering this. Still some way to go, I've still got what I believe to be a tilt issue but I'm not concerned about that for now and i think I'm always going to be battling noise and banding with my DSLR but it's the gear I have for now! Gear: SW HEQ5 Pro, SW 72ED DS
    7 points
  6. Trying to get a Hubb;le pallete look from L-eNhance data. Not quite there! Evostar80Ed, EOS1100D, 60 X 240s
    7 points
  7. While imaging M45 8-11 pm 11/7/20 -5 UTC (east coast U.S.) found this moving near M45. Stellarium shows no satellites. How do find out if it’s a know object? Jeff
    6 points
  8. Hey everyone! It's been a while since I've managed any solar imaging, but I finally managed some yesterday! Wanted to share it here for my first solar post on SGL. I've got a lot to learn, I'd love some feedback and tips! SW Esprit 100, Quark Chromosphere, 174MM. Stacked in AS!3, process in Photoshop, used Topaz Denoise and Sharpen for the enhancements.
    6 points
  9. Hey Everyone! I hope everyone is having a great week/weekend so far. I have been lucky enough to have 5 clear nights in a row! I was finally able to test out my new asi183mm with my 10" Newtonian. I traded my asi1600 for the asi183 has it paired really well with my newt for a really nice high resolution imaging rig sitting at .50"/pixel.! It will also pair really well with my refractors. For my first image I chose to shoot the Bubble Nebula. This one has always been a favorite of mine, especially with longer focal lengths. I gathered a total of 34 hours on this one. These are rather
    6 points
  10. NGC 281 SHO no resize, crop 1x1 TS 150/600 F4 + ASI 1600mm Bortlea Class 8-9 Baader Ha 300 x 120s + 90 x 300s Baader SII 90 x 120s Baader OIII 40 x 120s
    6 points
  11. NGC 896 is an emission nebula located in Cassiopeia about 7500 light years away. It is also the brightest part of the Heart Nebula (IC 1805) but has a separate classification, since it was the first part of the nebula to be discovered. The dominant red colour arises from hydrogen line photon emissions created by intense ultraviolet emissions from nearby stars. It is a star forming region and also home to many dark lanes created by interstellar gas. Some very bright blue stars compete in the nebula illumination, resulting in a blue/red cast in certain parts of the image. The LRGB image ha
    6 points
  12. Here's my rendition of the Crescent Nebula NGC6888 in HaRGB. 1.5hr each of R,G&B (90 x 60s subs) and about 5 hours of Ha, captured using ZWO ASI1600mm pro with SW ED80 DS Pro. Inages captured with APT, stacked in Siril with darks, flats and flat darks, processed in PS. Each channel stretched separately, then combined in PS to make RGB image, followed by Siril's photometric colour calibration. Starless Ha added to Red channel with blend mode lighten. HaR also added as a luminosity layer, followed by some final stretches and selective colour and vibrance/saturation tweaks.
    6 points
  13. Ordered this at the end of August & looking label on the box & at the weather forecast it won't be used this week.
    5 points
  14. Hello, Hope everyone safe & well. for this vaccine. I went back to this region as the Sun rotated on a few days. TV76 on a Solarquest mount, Lunt Herschel wedge, Baader Solar Continuum filter, 2.5x Powermate, ASI120MM mini. Best 5% of c 5k frames. AS!3, imppg & GIMP. Flipped to make it properly oriented (as per @Rusted suggestion!). Makes me wish I could capture more of the granularity or texture around the region, but I guess that would need an Ha etalon. It's safe to assume the Earth could be swallowed whole by the spot on the right? Stay safe all
    5 points
  15. After an incredibly frustrating 5 hour session on Friday, where i managed not a single image, it was a relief to get a decent hazy gap on Saturday. Some decent details visible despite the high haze cloud. The usual set up Evostar 120mm, Asi290mm, 120seconds stacking 20% in A/S3. Looks like it might be the only view i am going to get.
    5 points
  16. Arp 282 with Evolution 8 @ f/5 and ZWO ASI290MM 6 x 10 s
    5 points
  17. Mars from a couple of weeks back, probably one of the better images this season for me. A 6 (RGB) minute capture, derotated in WinJupos. C9.25, ADC, Asi290mm, X1.8 Barlow
    4 points
  18. I was lucky enough to get a chance to image AR2781 today between breaks in the cloud, being very low the atmosphere was jumping around and it was a challenge to get a few seconds of steady seeing Hope you like what I got Rich
    4 points
  19. I thought I'd struck a decent bit of seeing at last! Until I saw Dave's magnificent image. I feel so ashamed! Then I re-tuned the etalon.
    4 points
  20. This is my best attempt so far after following some sound suggestions from fellow imagers on SGL with regard to gradient control. I can get a half decent result now in Lum and seemingly on each of the RGB channels, but I still am struggling to combine them and get a good result. You will see a host of oversaturated red stars in the top left and a marked predominance of blue ones on the right, dear oh dear... Capture details: 12 panel mosaic total 48 hrs integration (but only 4 hrs per panel) Each panel 24 x 300 secs Lum, RGB each 8 x 300 secs, captured with a Esprit 150 dual rig
    4 points
  21. Collecting refractors seems to be almost as addictive as eyepieces, but for me this is one I had not intended on getting for a couple of years yet. However my father passed away 3 weeks ago and it seems i have been a very good boy in the meantime - during a discussion with my mum i was asked what scope i would likely get next. Like everyone i like to dream and a Tak 100 or an LZOS 130 have often been drooled over however in time i doubt i would be able to handle the 130's weight so a FC100DZ seemed the honest answer. What i did not expect was to be handed the money to buy it there and the
    4 points
  22. After 2 months of imaging Mars, during which time I was unable to get an image of the planet with Syrtis Major front and central my luck change for the better the last 2 nights. The below image shows 2 very similar view from 4 November approx 40 minutes appart. Most of the relevant details are annotated on the image. To add a little more info, both images are IR-RGB images, i.e. IR used as a luminence at 100%. Each image comprises 3 x IR-RGB runs, with each of the 12 videos processed in AS3! for best 1000 frames, wavelet sharpened in Registax 6, before derotation stacking in WinJupos
    4 points
  23. New and shiny toy just arrived Explore Scientific 102mm ED Essentials Triplet.
    4 points
  24. This has developed into a fascinating thread. If I had been able to mount the Istar 6 inch F/12 really well (as per @Rusted's post) I think it would have performed superbly. The best that I could give it was an EQ6 mounted onto a Meade Giant Field Tripod (3 inch diameter steel legs). Even that setup weighed in at getting on for 50 kg when fully assembled. The scope made the usually rather hefty EQ6 seem rather puny I think a Fullerscopes Mk IV would have been better but I could not find one when I needed it ! My inspiration for a large refractor has always come from Sir P
    4 points
  25. The downside of the SkyMax is that it has a relatively narrow field of view, and a long focal length, which has two effects. - the narrow field of view means that you need to be spot on with your alignment or otherwise you could find your actual target is outside your field of view - the long focal length can reduce the contrast of extended faint objects There's a lot to be said for the Az GTi as a mount, and with a light weight scope it works really well - however, my experience of using it with the 127 Mak is that it's not always spot on with finding its targets, and not
    4 points
  26. Another amazing set of data - kept my evenings interesting over the past week. Its an extraordinarily difficult image to balance, huge dynamic range. I found it extremely challenging to get the balance right and also put colour across the image that highlighted the different gaseous regions of M17 and where the Ha, Oii and Sii contributes to the overall false colour image. I used pretty much every tool in the box, Pi - initial stretch with histogram and creation of starless versions with Starnet++ PS - massive stretching of each of the starless images to get a colour into the mix, I f
    4 points
  27. I was aware that this comet would be quite bright (of course not like F3 NEOWISE) and that it could be a beautiful target to photograph because of its path right through the constellation of Orion. I was lucky that the weather was clear tonight, despite the forecast being completely red the entire weak ahead, and I managed to drag out my trusty star adventurer and Samyang 135mm F2 that I purchased this summer. I was aware that the final result would be quite mediocre because of my Bortle 7 location and the Waning Gibbous moon!! Nonetheless I was able to get a decent result, although I'm r
    4 points
  28. Hi Mark Full set of the original brass Abbe Carl Zeiss Jena Orthos, they are so sharp and flat to the edge you can use the field stop as an occulting bar. Picture of my set here with the bino head and rotating turret and all the fittings for afocal projection and the schott rotating filters. Interestingly for scopes that were to be used in very northerly latitudes Zeiss also supplied a set of paired Huygens eyepieces to be used in the bino head for planetary work as you can use their field curvature as an atmospheric dispersion corrector by placing the planet in the correct part of
    4 points
  29. A few from this morning, using a Lunt 60mm and ZWO290MM camera.
    3 points
  30. Hi guys, Just ordered an new Celestron SCT 9.25 cpc scope. Along with the Neximage10 camera. Yes checked the forecast for Leicester where I now live and, and yes, it’s raining all week. But chin up it won’t last forever will it ??? Cheers for now. Eddie
    3 points
  31. Hello, Here is a drawing I did through a 4" F/8 refractor, seeing was poor and the drawing took 30 minutes to do with detail levels constantly changing. Started drawing at 20:30 at x217 The disk is starting to look smaller now and the south polar ice cap is tiny. Syrtis Major was the main feature on the following side of Mars with the light coloured Hellas region just below it. Dew on the preceding limb was evident as was a small amount at the north pole.
    3 points
  32. C925 first image is a 3 panel mosaic with the 294mc pro with ir cut, best 20% of 1,500. Mono images with the 178mm and a 642 ir pass filter, best 15%-20% of 2k.
    3 points
  33. 3 points
  34. The surface granulation is definitely a white light feature. Not H-alpha. This is my own image taken yesterday of the same feature but using a mono camera and 6" refractor. The forum automatically opens image links: While this amazing image link is borrowed from Solar Chat forum: Captured by Alessandro Bianconi of Italy on the same day: https://solarchatforum.com/download/file.php?id=48607 Seeing conditions [first] skill at processing [second] camera [third] and instrument [fourth] all play a part. Seeing conditions are by far the most important. Best i
    3 points
  35. Hi all, These aren't pretty images. In fact, they're pretty awful! But at least they show both of Mars's moons Phobos and Deimos, which I've always wanted to capture. I noticed that tonight they were simultaneously at greatest elongation at around 7:30 GMT, so that I could potentially capture them at the same time. Phobos is so close to Mars, and orbits so fast, that it's usually engulfed by the glare from the planet. I captured these with my planetary imaging camera ZWO ASI290 Mono Mini and my 8" f/8 Ritchey-Chretien, plus 3x Televue Barlow, using Firecapture, 600 frames, 150ms
    3 points
  36. Well, apparently we visual observers could be wasting our time: https://stargazerslounge.com/topic/365778-observing-disappointment/?do=findComment&comment=3982775 But I think I'll stick with it
    3 points
  37. We do a lot of outreach with the public and families at LTO. Without doubt, the most versatile setup we have is using the SW AZ Gti with a small refractor. In the main we use my SW ED80 and you can get great value from virtually all common astronomical sights in the sky, year round. Any similar refractor will do the same. The AZ Gti will carry a Startravel 125 for example. The set up is portable, user friendly, can be matched with planetarium software (I run the mount with my phone and the children choose GoTo objects on the iPad), and can be run for two nights from one cordless drill bat
    3 points
  38. Can't see the problem, I once degreased my Mini engine block in the bath ready for rebuild Dave
    3 points
  39. Nice instruments John. The T-Rex needs an offset counterbalance by the look of it. Berry, offset fork style. You'll need a large clamp which doesn't mar the surface of the mounting cylindrical section. With a threaded rod, [stud/all-thread] on the opposite side to the telescope, to carry the counterweight. Work out the weight of the telescope and its offset to calculate the moment required. Lead is dense and compact. What about a black, gutter downpipe clamp in PVC? They are set up to have a sturdy screw fixing to the wall. Some are about the right size too. Th
    3 points
  40. I did a lot of reading on here about this mount and was very interested, so rang Rowan with a few questions. I spoke to Dave and had a long chat, and he invited me to visit them to see the mount for myself. I went over there a few days later. Beautiful mount, superbly engineered and silky smooth, I was very impressed. The AZ100 is available through FLO now, with fitted encoders and Nexus DSC, which I had a demo of, and looks so easy to use. Motor drive if required is under development and will be a simple add on, as the mount is already prepared ready to accept it. I ju
    3 points
  41. Congratulations on having a gorgeous instrument to play with Rod. Though I wouldn't want to confirm image orientation in a hurry. A long lecture: The sheer scale of such a professional instrument should be noted by the over-ambitious refractor "wannabe." The great length of a "normal" straight OTA means that the moment is huge. [mass x distance from the fulcrum] Which easily exceeds the ability of most commercial mountings to keep things under control. Forget anything under £10K if you want to go commercial equatorial. Or you will regret it from first light until you sel
    3 points
  42. A more sensible image of it Dave
    3 points
  43. Hi Dave, Wot Peter said. He's the professional. I am the bumbling amateur. Most of my stuff is built from scrap metal. Here is a random selection showing my home made equatorial mounting with 50mm shafts. The other mounting is my old Fullerscopes MkIV with 1.25" stainless steel shafts. My blog has images scattered throughout of my various telescope projects. The massive, mobile pier under the MkIV was to cope with our high hedges and trees. It is very unsafe to push around due to its high CofG. The dome is 3m diameter, self made from plywood and mounted on a hexagonal b
    3 points
  44. Had a go at this last night. Captured around 5000 frames with the ZWO 178MC and a 2x barlow Processed the best 50% using PIPP, AS3 and Registax. Can anyone help to explain why it seems like i have a sort of "double" edge to the planet, mainly on the right hand side?? Thanks for looking anyway
    2 points
  45. First planetary image of any sort actually! So this has been a bit of a learning experience! I seemed to just blindly stumble through the programs I used, if anyone has any tips or guides for capturing or processing I'd be delighted to hear them! The one thing I do know is that I am using equipment that isn't ideal! However I thought I would have a crack and see what happened. I will admit that I am absolutely delighted by my modest results. Telescope: Skywatcher 150p on it's white turntable base (so many many reasons why this made it quite difficult! focusser, lack of tracking,
    2 points
  46. I'm afraid they are only mono. C11 XLT CD, Zwo Asi 178mm. Light frames only. Still struggling with LRGB at the moment. Awful weather to contend with and Mars bouncing around the field of view on all occasions.
    2 points
  47. I disassembled, cleaned, and recollimated the Astro-Tech AT8RC, which is an 8" Ritchey-Chretien, a few weeks ago. I chose to wait until after the most recent full moon to get it out and test it. The star test looks good and I don't know that I would mess with it at all even though I know it could use a bit of tweaking. It's good enough for my purposes. I'm not out to win any imaging awards. Just thought I'd share a few pictures of the disassembly, my setup, and of course the final image. QHY247C IDAS LPS-D2 filter Astro-Tech AT8RC with Teleskop 1.0x Flattener Moonlite CSL 2.5" focus
    2 points
  48. I find visual observing directly connects me to what I’m seeing whereas AP isn’t as involving. Just prefer that direct connection but maybe that’s just me.
    2 points
  49. Had it a little while but not had much chance to use it so had a small session with it Friday night and I can see it’s going to be a loverly scope
    2 points
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