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Found 178 results

  1. From the album: Deep Sky Imaging

    This exposure of the Orion Nebula region is really just a quick and lazy session since I didn't want to waste a clear night by doing nothing and the scope was already setup and focused so I wouldn't be spending much time on setup. I also didn't have a plan for imaging another object it seemed like a good idea being a bright and easy object to image. I already imaged this object in the past, but by comparing the setup, procedure and improved tracking accuracy of the past together with the now cooled 40D, I know that the result would have been an improvement if I would have dedicated the necessary exposure time, through the necessary NB filters. This image all consists of RGB/OSC, IRCut filtered, 31x15s, 32x30s, 16x60s, 10x90s, 11x120s ISO1600 subs.

    © Mariusz Goralski

  2. From the album: Other (Narrow field, DSO, EQ)

    My first HDR. Capture: Olympus E-PL6 on Skywatcher 130PDS at 590mm/4.55 with SW CC and dydimium filter on Omegon EQ-300 tracking RA Exposure: 19 × 10s × 2000iso + 10 × 30s × 3200iso + 6 × 60s × 2500iso (total 14mn10s) Site: 50km from Paris (France), Bortle ~ 4 Processing: Regim 3.4, Fotox 12.01+

    © Fabien COUTANT

  3. Hello astronomers, This exposure of the Orion Nebula region is really just a quick and lazy session since I didn't want to waste a clear night by doing nothing and the scope was already setup and focused so I wouldn't be spending much time on setup. I also didn't have a plan for imaging another object it seemed like a good idea being a bright and easy object to image. I already imaged this object in the past, but by comparing the setup, procedure and improved tracking accuracy of the past together with the now cooled 40D, I know that the result would have been an improvement if I would have dedicated the necessary exposure time, through the necessary NB filters. This image consists of all RGB or OSC (through the IRCut filter) 31x15s, 32x30s, 16x60s, 10x90s, 11x120s ISO1600 subs. I am not prepared to spend subsequent nights capturing narrowband subs on "Orion's Sword", at least not this year... perhaps next time M42 is in the sky and only if I reach near freezing temperature cooling on my sensor. Clear skies, MG
  4. Like the lunatic that I am, I decided to get the scope out last week during that storm that was passing through. The skies were clear and there was no moon about, so I figured why not! Only problem was the 17-20 mph winds, lol. I got 2 hrs of subs but had to throw away half of them due to guiding problems more so than the wind, amazingly. This was the 2nd time in a row i'd had Dec guiding problems, and that's after about 2 years of not having a single problem guiding. After the 1st hr of wasted subs, I turned off Fast Switching in Dec and chose to only Dither in RA, and the Dec problems mostly went away, at least to allow me to capture 1 hr of 'still dodgy but just about useable' subs. Once M42 disappeared behind the neighbour's roof, I then re-calibrated on the Celestial Equator (Dec 0) and when I switched to the Pinwheel Galaxy I was able to guide as normal again (with Fast Switching and Dithering in both RA and Dec both turned on again) and didn't lose any subs, despite the wind, so I've decided that from now on I won't be calibrating at the target itself, i'm always going to do it at Dec 0. I decided to throw this in with another 1 hr of subs (plus 10 x 30s for the core) that I took back in Jan 2017 (has it really been that long?!). That hr also had issues, with some weird streaking in the lower left that I could never work out what caused it. The D5300 hadn't been modified at that stage either. So I fired it all in to APP and decided to stack it anyway, and give it a quick process. Then chose to crank it up to 11 on the colour front, just for laughs. It won't be going on the wall anytime soon, lol, but I suppose it came out a bit better than I was expecting, all things considered. 20 x 360s with an IDAS-D1 D5300, 80ED, HEQ5-Pro. Stacked in APP, processed in PS. CS! edit - I forgot to downscale it - so no pixel peeping allowed ?
  5. From the album: Deep Sky Imaging

    Image of the great Orion Nebula, M42 or NGC 1976, taken in natural color through my 8" SCT at a focal length of 2032mm using an astro modded and (the recently) cooled Canon 40D DSLR. Total exposure time was just 1 hour 21 minutes and 45 seconds, image consists of 15 x 15sec, 12 x 30, 60, 120 and 180 second subs at ISO1600.

    © Mariusz Goralski

  6. Hello Astronomers, Image of the great Orion Nebula, M42 or NGC 1976, taken in natural color through my 8" SCT at a focal length of 2032mm using an astro modded and (the recently) cooled Canon 40D DSLR. Total exposure time was just 1 hour 21 minutes and 45 seconds, image consists of 15 x 15sec, 12 x 30, 60, 120 and 180 second subs at ISO1600. Clear Skies, MG
  7. Christmas Present: Altair GPCAM290C - That and the Brian May 3D Apollo book and the Paul Sutter book, I had a great Christmas. Telescope: Celestron: 9.25 SCT - Retirement present to myself, nice telescope, didn't quite get a perfect focus. Mount: Celestron CGX - Tracks nicely now I've learnt to polar align it. Imaging: SharpCapPro - 10 x Fits, no darks or lights because I lost the usb connection to the mount and it was too late to set it up again! Pre-processing: PIPP - 10 x Tif to de-Bayer the fits Stacking: Registax 6 Processing: Gimp - A quick tweak with curves, levels, colours and hues but I'm still stumbling in the dark really!
  8. ...It's enought to celebrate, heck it's enough to get drunk I say...! Yesterday it's was clear and so I had to make the yearly M42 image, it's already late for it as it's getting behind the roofs for me but even so i managed to get 7x10 min. subs and another 10x30 secs for the core, cooked it all an there you go, a clean and detailled Orion nebula The image is resized to 50% resolution but still there's plenty of details to take in, check out the trapezium fully resolved, in the full resolution image there's even E and a hint of the F component there at only 800 mm f/l...cool https://www.flickr.c...eposted-public/ Hope you enjoy, Cheers, P.S: Thanks to Jerry Lodriguss for the tutorial in PS, I allways get at it when processing images of M42...as I forget how to do it every time
  9. M42 orion neb. woke at 4.45am got a qwick snap before the sun rose, 5x10sec staxed, didnt have time to sort tracking because it was slipping out of view of my obsy window so could only get 10 sec subs and out of 24 5 where only useable. taken with ed80 and sony alpha iso 800, staxed with Regi. thanks for looking clear skys charl.
  10. Hi All, I was lucky enough to have one clear night in between cloudy and rainy weather. It happened to be a moonless night, so between 9pm and just past midnight I grabbed the final subs I needed to finish the NGC1365 barred spiral image (still to be finished-processed) and after those subs were done I wanted to start to image the whole of Orions Sword using my 80mm f6.25 refractor. I captured an hour of 210 second subs, an hour of 180 second subs, 30 mins of 30 second subs and 15 minutes of 15 second subs all on the full spectrum modded Canon 40D at ISO800. For the final processing I selected only the best subs, and thankfully most were near perfect (for my average standards), resulting in me only throwing away a total of 15 minutes of data. The next night I get a another imaging session at Orions Sword (hopefully still when the moon is not lighting things up), I'll grab a stack of Halpha and OIII data to add to this project. I'm curious what the narrowband added to this RGB will result in. Clear skies, MG
  11. Been really busy with university applications lately, but after watching Star Gazing Live last night I felt inspired to brush the dust off the scope and get imaging. Didn't get nearly as much exposure as I'd hoped due to mechanical problems, but was very happy with my polar alignment. Almost getting the hang of this stuff! Anyway here it is, my first go at M42, in JPEG form, with some very quick and basic post processing in DSS. Not happy with the clarity of the image, it appears hazy to me? And the core appears kinda burnt out. All feedback appreciated(: Scope: Skywatcher 200P Camera: Sony Alpha A-57 25 lights at ISO 1600 and 30s each. 12mins 30secs exposure time. 28 darks No flats or bias
  12. Hello all, last I night I give a try at Orion Nebula when the clouds were not in the way I live in a fairly light polluted city centre (with a thick orange sky glow) so I decided to buy a Baader UHC-S filter to see if it would help, so this is my first light with the UHC-S and I was chuffed! In my opinion, it's worth every cent! Normally, even when taking a lot of subs, darks and flats I end up with weird gradients, heavy noise, lack of contrast and other annoying artifacts that not even post processing can get rid of, but last night the UHC-S blessed me and with only a bunch of quick subs and darks I've finally got some decent contrast, decent colours and detail ! Again, not an Hubble grade picture and very far from those crazy 100 hours Ha-RGB stacks, but it's my first half-decent DSO image so I'm happy with it (it must have been my lucky night yesterday, as I was lucky also with Jupiter). I think it needs some more post processing as there is a bit more signal and nebulosity to squeeze out. Any comment or advise appreciated! Celestron 80ED (F/7.5) Motorised EQ5 (Rough polar alignment) 2" UHC-S Filter Nikon D7000 20 subs, 20 seconds each, ISO 1600 5 Darks Churned by DSS Squeezed by Adobe Lightroom Thanks for watching!
  13. reprocessed. i split the channels and ajusted on the own, as advise by MG. i think its looking better its got more detail now. feel free to have a play. taken with ed80, sony alpha. 20x 25 second shots iso 800. thanks for looking clear skys charl.
  14. 9th/10th November 2015 Equipment: 80x500mm refractor Time: 22:46 - 00:40 47 Tucanae: showed a fuzzy patch with a distinctly denser/brighter core through a 40mm eyepiece (13X magnified). The 11mm (45X) eyepiece started to show granulation through out the globular cluster. The view was quite faint but noticeable and distinct. The very obviously brighter core gradually became fainter and more disperse toward the edges of the globular disc. The edges were noticibly irregular. NGC265 in Hydrus, dense star field just above beta Hydrus near east of 47 Tucanae. Heaps of faint stars but no nebulosity. The orange star that reminded me of the Sagittarius supernova during last binocular observation is in constellation Reticulum, quite possibly alpha reticulum, right place and brightness, note that gamma reticulum seems orange on star maps. Cluster in Sirius that I spotted last time I was observing is M41. A open cluster of stars, quite sparse and spread out cluster. Easily visible in binoculars and the 80mm refractor. The Pleiades are looking awesome as usual, about a hundred stars visible, and the whole constellation visible in the 40mm eyepiece FOV. This is one object that I usually spend a fair bit of time observing. This view is one that needs the least possible magnification with the highest possible light gathering power, so the 80mm scope at 13X through the 40mm eyepiece is ideal... Atleast in my tool box. Orion Nebula shows the whole Orion's sword in the 40mm eyepiece at 13X. This is definitely a view worth spending a bit of time observing. The running man nebula is very faintly showing through, but not anywhere near as obvious as the Orion Nebula. Increasing the power to 45X with the 11mm TV Nagler reveals more nebulosity and the trapezium is very obvious. Filters: Celestron OIII and Lumicon UHC filters seem to cut away too much light in the 80mm scope. There is more contrast through both but I preferred the view without either filter. The Celestron UHC/LPR and Seben CLR filters did a better job in showing more nebulosity as well as increasing the contrast. Both had their advantages so it's hard to say which did a better job, but if I had to choose, I'd say the UHC/LPR had slightly the edge on the darker parts of the nebula. The OIII and UHC filters are both too aggressive for the 80mm. Equipment: NexStar 8SE Time: 02:00 - 03:40 From approximately 2am, when the 80mm frac was setup to image the Orion's Sword, I wanted to compare the view in the 8SE to the 80mm refractor. First I framed up on to the Orion Nebula, without the UHC filter the nebula glow was very obvious and the stars with in and around, such as the trapezium, were bright. Looking through the 40mm and 11mm eyepieces with and without the UHC filter, the nebulosity was quite obvious, the "moustache" and the fishes mouth were obvious with detail visible that was not visible in the refractor as expected. That said I do remember a more detailed view of the Orion Nebula in the past... Especially using the UHC filter. The second object I located was the globular 47Tucanae. In the 40mm eyepiece the globular did not look any better than in the refractor so I replaced the eye piece to the 11mm Nagler. In the Nagler the globular was still quite dim but I did start to see granulation within the globular, but I was expecting to see the globular as a brighter object than what I'm seeing. I put the reason to seeing such dim views in the globular and the Orion Nebula to the fact that I had to keep adjusting the autoguide star on the laptop screen, even though the screen was turned down to minimum, I figured that the white light was still bright enough to ruin my night adaption.... Then I thought, have a look at the corrector plate... Sure enough, nearly totally covered in dew. Oh well the observing part of the night is over, next time I'll have to run a RCA cable from the CGEM dew strap controller to the 8SE on alt-az mount and try these objects again. Hopefully in the next week there will be at least one more clear night before the moon lights things up again. MG
  15. My wife Janie is very heavily into cross-stitch and produces beautiful work from photographs (normally dogs!) using patterns that I produce for her using special software. Her latest project is from one of my deep sky images and one of her favourite objects, the Orion Nebula. The 'resolution' is a pretty appalling 216 x 216 stitches but when hung on the wall and viewed from about four feet away, it will look like a photograph. As usual, I have produced a mock-up for her showing literally every stitch that will be sewn using 82 different silk colours! For the fun of it I will post up WIP images but here is the mock-up for starters (the image might need to be clicked on to show the stitches rather than just an interference pattern!):-
  16. Captured back in early October, I didn't pay quite enough attention to the framing - I should have moved the camera up and right a bit and I could have gotten the whole belt in the picture... the headline stuff is in there though, M42/M43, Horsehead and Flame etc 10x 200 second subs taken with a modified Canon 650D through a Borg 55 f/3.6 (focal length 200mm). There's a load of red stuff in there that needs more exposures (or slightly longer ones) to show more off so I will redo this one and frame it correctly... or do a mosaic of Orion or... well, it'll depend on the number (or lack) of clear nights!! Unfortunately there are haloes on Alnitak and Alnilam, I may have a solution for the next time I cover this area Processing wise I'm going to have to sort out shorter exposures for the Orion Nebula and longer for the rest... James
  17. This is the result of a stack of images of the core of M42 that I took in February. I'm a new to DSO AP and not experienced at all! I have tried to do all sorts of things with the resulting tiff file from DSS (10 x 30 sec lights + 10 x 30 sec Darks + 5 Bias frames using an unmodified Nikon D7200 at ISO 800 on a Starwave ED80). I'm now being patient and slow and followed a PI workflow and I did a little PS to further reduce noise. Thought I'd risk showing it and hope someone can comment on how to improve my new technique in the future. Thanks for looking, R:)
  18. As it has been a number of years since i have managed to get out under the stars (having had two small children in between) i thought i would use an old friend to get back into deep sky. M42, about 12x6 mins lights, darks to match. Dss and PS to tweek. It was such a nice feeling to get out there, a dream session where it all worked as it was supposed to and not a cloud to be seen. Had a look at Venus as well but my views of Mars and Neptune from here were pretty poor. nice to be back!
  19. I had another good night recovering my imaging skills on 28th with M42 as the subject. Equinox 80, Canon 1000D, 20 frames each from 2sec to 300sec at ISO 800. I used the HDR tool in PixInsight using this tutorial. I like it. I am not sure I believe all that brown stuff near the Running Man, but this is definitely the best image I have created of M42. Not what it looks like through the eyepiece, but revealing a lot more detail than previous attempts. What does everyone else think? Good, bad, meh? I have kept the processing to the minimum steps so it is possible I might be able to do more with this, but happy the way it is. Happy New Year all!
  20. First light for my new Sky-Watcher Explorer-150PDS (a good way to start the new year). This scope is much better suited to Deep Sky astrophotography with its f/5 aperture and with its 150mm mirror and a nice, wide 750mm focal length. The night was spent mostly getting to know the new beast (working out balance, focus, and guiding) so a relatively easy target was chosen for a test image and our old friend M42, the Orion Nebula was the obvious choice (also it was a full moon, a bit windy, and not the clearest of skies). It's going to take a bit of getting used to but I'm happy to report that it does exactly what it's supposed to do. Exposures can be much shorter now which makes guiding issues less frequent. There are still a few wrinkles to iron out (like how to use a 1.25 inch light pollution filter and maintain prime focus) but on the whole it makes imaging much less laborious. I expect images to improve greatly over the next few months as it becomes more familiar. 48 x 20 second exposures at 400 ISO (16 minutes integration) 64 x dark frames 24 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Captured with APT Guided with PHD2 Processed in Nebulosity and Photoshop Equipment: Sky-Watcher Explorer-150PDS Skywatcher EQ5 Mount Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 700D DSLR
  21. Had some fun with my old Takumar lens, it actually comes into focus quite nicely on my Atik manual filter wheel. 2 panels of only just half hour each... I have hardly seen a clear night in months Still this setup is extremely cheap and effective.. and quick!
  22. Had a few hours of clear sky on Tuesday so managed to get some data on M42. 20x 2 seconds, 125 x 20 seconds and 6 * 60 seconds before the mist rolled in. (sigh) Captured with Kit in sig, stacked in Nebulosity and then combined in Gimp with the "Exposure Blend" Plug-in to HDR the images together. First time I used this plugin and was impressed on how easy it was to use. It needs some flats to get rid of the gradient but thats for another day when its not too cold. Cheers John
  23. sketch 17.11.12,gel pen, 3b pencil.becuase of dew issues had to switch between x48 and x66 ,so scale may be a tad out ,(nothing new for though ) its hard sketching when your fingers are numb .
  24. It's been ages - well the best part of a year since I sold my trusty OSC self-guiding SBIG camera and replaced it with a Mono (via Ian King) due to my increasing light pollution... I've become a part time beta tester in the process for Canada based Apple Mac astro software developer - Microprojects, whilst trying to sort out the new STF8300M imaging camera and the 'dog' of an ST-i guide camera (it would be nice if SBIG pulled their finger out and sorted new drivers considering it's advertised as Mac compatible - so 'be warned' any Mac purchasers at the moment as the thing does not appear to like PHD either), but, we are nearly there (well I have an image at least - although I very nearly jacked the imaging game in to go back to visual), as I have spent ages 'garage' testing software whilst everyone else has been imaging and improving...... most depressing ;-( Still the odd issue with the STF locking whilst downloading an exposure and more annoyingly, on/off guiding due to 'corrupting' guide stars (ST-i) we think due to fluctuating noise levels playing havoc with the auto dark subtraction....or it could all be driver related(!), but an image at last to show you! Still a work in progress - need more exposures and some shorter ones for the core - plus brushing up my processing skill again! Not sure if I'll go for RGB colour or try a full narrowband image at some stage.... At the moment though I may just stick with Ha and try to build up a decent 'core' library to add to in the future - and resolve the last software issues.... Details: M42 Orion Nebula - Ha, 11th Nov 2012 WIP - still to get 'core' data. Only 15 x 600 sec exposures Takahashi FSQ106-ED + dedicated F/R @f/3.6 SBIG STF8300M + Baader 7nm Ha filter. Guided with SBIG ST-i via ST-80 via MicroProjects Equinox Image (beta test) 'Scopebuggied' Takahashi EM400 mount - controlled via MicroProjects Equinox Pro (all on a 17" MacBook Pro) Preprocessed (Darks and Flat frames), aligned and stacked in Nebulosity 3. Processed in Adobe Photoshop CS5 Would appear that I'm not the only one who has suffered camera, mount, computer issues.... stupid game this imaging! Thanks for looking....
  25. Hi, Some old data from last November; before my camera was modded. The original image was processed with DSS and GIMP, the new version with DSS and StarTools. I'm still quite noobish when processing with StarTools. but its a really fun program to learn. On this image I forgot to desaturate the sky background to remove the LP colour glow--when I do a reprocess I will do that. I'm hoping that there will be some clear skies around November-December this year to get some better quality data. The streaky noise is caused by the rather noisy CMOS and no dithering--I didn't start using APT until the New Year. The gradient is caused by the secondary being not quite centred under the camera up/down the tube. Around 1 hour of 2-3 min subs, ISO 800 EQ5 and 130P-DS, guided with PHD2 & 50mm finder/guider EOS 1000d and MPCC Mk 4 + Cheap LP filter Old: (GIMP) New: (StarTools--Still a lot of work needed) John
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