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Found 22 results

  1. From the album: Deep Sky Imaging

    I managed to get some time to process another of my images exposed in January/February 2020. This was the last image when my USB port on my Astro40D failed. This happened while imaging this scene but it happened toward the end of the imaging plan so I got almost the subs that I wanted. The total exposure time was 16 hours and 16 minutes in ISO1600 for all of the subs, RGB, (OSC through the UV/IR Cut filter), HAlpha and OIII. Imaged through my 8" SCT at f6.3, 1280mm FL.

    © Mariusz Goralski

  2. MarsG76

    Barnard 33 Region

    From the album: Deep Sky Imaging

    Horsehead and Flame nebulae around the star "Alnitak" in "Orion's Belt" in the constellation of Orion. The nebulae are located approximately 1350LY for Flame nebula and 1500LY for the Horsehead curtain glow nebula. Alnitak is a bit closer at about 1250LY and is the source of light for the glow of the nebulae. The Horsehead nebula is a cold dark nebula silhouetted against the pink hydrogen alpha emission nebula IC434. The Horsehead shape is just the shape of the nebula that blocks that part hydrogen emission of IC434. This image was taken using a full spectrum modded Canon 40D. Image consists of Hbeta, HAlpha and OIII data as well as RGB taken through IR cut and neodymium filters across multiple nights in November and December 2015.

    © Mariusz Goralski

  3. Hi all, my second attempt at imaging over multiple nights, captured 60 mins Ha and a couple of 5 mins on Oiii and Sii on Christmas evening, then added more Oii and Sii on the 30th Total of 60 mins Ha 25 mins Sii and 30 mins Oiii Hubble mapped - SII,Ha,OIII = R,G,B. The Oiii data was very noisy but I'm fairly happy overall, also the ZWO Oiii filter caused a massive ring around Alnitak when stretched ! Comments welcome, I know it needs more data and I will need to learn to be more patient but the year is running out Thanks for looking and have a good 2020.
  4. Between the clouds, moon, neighbour's roof, nearby floodlights, and all the usual general life stuff, i've simply not been able to get any meaningful data on the HH (or Orion for that matter either) for the last 2 years! To say it's been my nemesis would be an understatement. At this rate i'll be glad to have that box ticked proper before i hit 50 ? So when we had a few hrs of clear sky (and no moon) a couple of weeks back i knew i had to give it a go. I luckily managed 9 x 7mins before it disappeared behind the neighbour's roof. I also have 5 subs of Ha (90 mins in total) from last March, although it wasn't of great quality (there was a nearly full moon right beside it, plus the neighbour's fire smoke was billowing up through the Fov ? ). I've been waiting patiently for more clear skies to add to this, but that 's not working out too well, lol. I really shouldn't be processing this, but all work and no imaging makes Ciaran a dull boy, so here goes nothin... 9 x 7mins with an IDAS-D1 4 x 1200s and 1 x 900s of Ha ~2.7 hrs in Total Stacked in APP and processed in PS. Lots of heavy lifting needed in PS, and i've reduced it to 50% in size as well. For now, at least, this will have to do. There's a lot of good HH's about so hopefully this one's not too hideous! ? I'll post what the 2 raw stacks looked like below as well, just for kicks. Here's the 9 x 7 mins raw stack (with DDP stretch): And here's the ~90min Ha raw stack:
  5. Here's my latest, taken back at New Years, and I've been working through the Pixinsight Book processing it, hope you enjoy: 19 x 180s lights, flats darks and bias, equipment as per kit, Pixinsight processed. I didn't get as much data as I would like as dew eventually stopped the session (my guidescope fogged up and the laptop was dripping wet), so noise was a bit of an issue if I'm honest. Here's some blurb stolen from Wikipedia: Alnitak (Zeta Orionis), the bright star in the picture, which is the leftmost star in Orion's belt, is a multiple star. The primary star is a hot blue supergiant with an absolute magnitude of -6.0 and is the brightest class O star in the night sky with a visual magnitude of +2.0. It has two bluish 4th magnitude companions. The Horsehead Nebula (top right of pic) is a dark nebula. The nebula is part of the much larger Orion Molecular Cloud Complex. It is approximately 1500 light years from Earth. The red or pinkish glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. Magnetic fields channel the gases leaving the nebula into streams, showing as streaks in the background glow. A glowing strip of hydrogen gas marks the edge of the massive cloud, and the densities of nearby stars are noticeably different on either side. The heavy concentrations of dust in the Horsehead Nebula region and neighbouring Orion Nebula are localized, resulting in alternating sections of nearly complete opacity and transparency. The darkness of the Horsehead is caused mostly by thick dust blocking the light of stars behind it. The Flame Nebula (NGC 2024, just below Alnitak in the pic), is an emission nebula. It is about 900 to 1,500 light-years away. Alnitak shines energetic ultraviolet light into the Flame and this knocks electrons away from the great clouds of hydrogen gas that reside there. Much of the glow results when the electrons and ionized hydrogen recombine. Additional dark gas and dust lies in front of the bright part of the nebula and this is what causes the dark network that appears in the center of the glowing gas. At the center of the Flame Nebula is a cluster of newly formed stars, an estimated population of 800 stars. Several of the other stars in the pic show reflection nebulae where starlight is reflected off inert dust and gas, illuminating it. Cheers, Stuart
  6. 53 x 2m subs Canon 450D all filters removed, Sigma 120-300m f/2.8 OS + 1.4 teleconverter for 420mm f/4. Astronomik CLS-CCD filter. Processed in PixInsight with darks. Finish off in PS Elements. This is the longest focal length I've seriously used for deep sky imaging yet. Was hoping to pick up the texture behind the horsehead but looking at other photos I think I need more resolution to really pick it up than this widefield attempt. Might try the ST120 on this next time (600mm f/5).
  7. From the album: Widefield DSO

    53 x 2m subs Canon 450D all filters removed, Sigma 120-300m f/2.8 OS + 1.4 teleconverter for 420mm f/4. Astronomik CLS-CCD filter. Processed in PixInsight with darks. Finish off in PS Elements.
  8. I've been sitting on this data for quite a while (it's from Jan 2017). I've had a few goes at trying to process it, but always junked the results - mostly because of Alnitak! I've bitten the bullet and just posting it here to try and draw a line under this lot (and I've not done much else recently - illness and summer light nights...). Flare and scattered light in the field hasn't helped me and there's a bit of fringing with the brightness of the star. I have since cleaned the objective on the FLT110 as it was filthy, and I may have struggled with transparency, but I'm not sure what else I could do here to bring out more detail or contrast into the image with Alnitak sitting in the field - it just feels a little "soft" ?. It also throws the colour balance off a bit - I think this is an Ok version, but the Flame is perhaps a little on the red side. Details are: ST2000XM + FLT110 (with FR at f5.6). LRGB : 29x5m, 25x5m, 17x5min, 15x5min (RGB 2x bin) Captured Jan 2017 C&C welcome...
  9. I debated posting this in the deep sky section but figured I'd go for widefield as it is indeed rather widefield... Only a limited number of subs captured during a clear spell at the recent Kielder Star Party - here's a chunk of Auriga with the Flame Nebula at the top and M38 at the bottom left with a variety of other objects in between. It's a work in progress in that as soon as I can get a lot more subs I'll do so to really try and pull out the nebulosity in it...it'll take a while for me to identify all the objects (there's something at the top left that I'm curious about). Captured using a modified Canon 650D through a Borg 55 f/3.6 scope (focal length 200mm). I used one of their new QRO filters, the HEUIBII version, an upgrade to the 'standard' IDAS which has a filter cell designed to minimise reflections which I'd had on some of my earlier images - I think it's worked well!! I'm desperate to capture more subs for this one as I think there's promise in there, there's a considerable amount of nebulosity across a big part of the field of view but there's only seven subs in there, 5 from Kielder and 2 from home, 200 seconds each. I've used Pixinsight to process and have very slightly clipped the black end during processing to try and control the noise that more subs will deal with... James
  10. Now i dont know if i'd call this cheating - but i did a monochrome version of this because it just feels so much easier to bring out the little detail in this image without creating too much background noise in the colour version . I think i like this more than the colour version edited with PI LE, CS5 Unmodified Canon 50D, Sigma 50-500mm APO F/4.5-6.3, SW EQ5, 30 x 120s ISO 800 Sorry but cant remember what focal length this was taken at! taken in a very light polluted aberdeen
  11. Re-processed to try to bring increase the brightness of the various nebulae and increase the contrast a little without futher blowing out the stars and adding too much noise ... orignial: Orion's Belt - centred on "Alnitak", is a 1.7 magnitude triple star 740 light years from Earth and appears at one end of the belt. The Flame nebula ( cat: NGC 2024 or Sharpless 2-277 ) ( lower centre left of the image) glows yellow-pink due to the ionising radiation that comes from Alnitak. Seen from Earth, the Flame nebula is behind Alnitak and around 80 light years further away from Earth. The Horsehead nebula ( cat: Barnard 33 ) ( centre right of the image ) is a dark dust and gas cloud that is only visible from Earth due to the backlight illumination and silhouetting caused by the bright pink glow from the ionised hydrogen gas in the emission nebula IC 434. The bright blue reflection nebula below and to the left of the Horsehead is NGC 2023. Details: Combination of two sessions over a year apart. Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, no filter. Nikon D5300 (unmodified). 14bit NEF, Long Exp. NR on. 18 Dec 2015. 21 x 20 sec ISO 800. 165 x 30 sec ISO 800. 13 x 60 sec ISO 800 . Baader UHC-S , 12bit NEF, Long Exp. NR on. 5 Oct 2014. 19 x 2min ISO400 Pixinsight Links:. https://500px.com/mikeoday http://photo.net/photos/MikeODay
  12. Orion's Belt - centered on "Alnitak", a 1.7 magnitute triple star at one end of the belt. Includes the Flame Nebula (NGC2024) and IC434 which contains the Horsehead Nebula. Links: 500px.com/mikeoday photo.net/photos/MikeODay Details: Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D5300 (unmodified). Field of view (deg) ~ 1.35 x 0.90. UHC-S - 19 x 2min ISO400 (12bit NEF, Long Exp. NR on). taken 5 October 14 reprocessed with Pixinsight and Photoshop 6 Sept 15
  13. I struggled to try to significantly reduce the quite apparent noise without losing too much detail in the clouds. In the end I decided to keep the detail ( and the noise ). Details: Orion's Belt - centred on "Alnitak". A 1.7 magnitute tripple star at one end of the belt. Includes the Flame Nebula (NGC2024) and IC434 which contains the Horsehead Nebula. RA 16h 41m 42s, Dec -48deg 48' 46". Approx. 3800 light years away. Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount (on concrete pier). Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, no filter. Nikon D5300 (unmodified). Field of view (deg) ~ 1.35 x 0.90. 300 subs in total. 63 x 10 sec ISO100. 38 x 20 sec ISO200 . 21 X 20 sec ISO800. 165 x 30 sec ISO800. 13 x 60 sec ISO800. (14bit NEF, Long Exp. NR on). Pixinsight and photoshop. 18th December 2015. source: http://photo.net/photos/MikeODay https://500px.com/mikeoday
  14. Hello to all, this is my first color image using my STF-8300M and Baader LRGB filters. In addition, this is my first image processed in PixInsight. Please provide feedback on it; I don't mind constructive and respectful critique. Astrobin:
  15. From the album: Mike's Images

    Orion's Belt - centered on "Alnitak", a 1.7 magnitute tripple star at one end of the belt. Includes the Flame Nebula (NGC2024) and IC434 which contains the Horsehead Nebula. Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount Orion 80mm f5 guide scope and auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D5300 (unmodified). Field of view (deg) ~ 1.35 x 0.90. UHC-S - 19 x 2min ISO400 (12bit NEF, Long Exp. NR on). Raw conversion, initial colour balance and shadow and hightlight recover in DXO Optics Pro, aligned and stacked in Nebulosity, processed in Photoshop 5 October 14

    © Copyright Mike O'Day 2015 - all rights reserved

  16. An unseasonally warm winter's night with dead calm air and excellent seeing here on the west coast gave me this.. 10 400 second exposures @ ISO 800 10 Darks and 10 bias stacked in DSS and tweeked in Photoshop and Lightroom. My first real attempt using my newly aquired custom modified 6' f5.6 Newt i was given by a neighbor. Let me know what you think of the processing. Look up! -Lev-
  17. After an epic battle with dew, I think dew won and gave me those interesting diffraction spikes, presumably due to the way I was trying to wipe it off... 11x2m subs, modified 450D, CLS filter, ISO1600, 300mm f/2.8. Just a quick edit... needs more data to reduce noise.
  18. From the album: Alt-Az / NoEQ DSO challenge

    Try 2 at all nebulas around alnitak, from heavy light-polluted skies oh home around Paris but with UHC filter. Much better than try 1, thanks to number of subs, but still difficult to come, I suppose because of limited sensor depth. (or is it LP?). However some color is missing, had to use manual BV calibration in Regim to get something barely acceptable. Capture: 101 good of 123 lights x 25s x 2500iso, 30 NG darks, Olympus E-PM1 with Skywatcher 130PDS on Celestron Nexstar SLT, Skywatcher ComaCorr and TS-UHC filter. Processing: Regim, Fotoxx Date: 2017-01-21 Place: suburbs 10km from Paris, France.

    © Fabien COUTANT

  19. From the album: Mike's Images

    © Copyright Mike O'Day 2014 - all rights reserved

  20. A few 'firsts' for me here:- First ever RGB image First ever image processed in Pixinsight - all thanks to HarrysAstroShed tutorials First 'proper' use of ASI 1600MM-C with Mini EFW First image through the OpticStar 127mm Apo R,G and B - 30 subs each @8 seconds with ASI1600MM-C set to unit gain, offset 21 and @-20C I have a lot to learn (many more tutorials on Harry's site, the LightVortex site and also Warren Keller's book) - but its a start. Now - How do I get my luminance image (60 subs - other settings as above) incorporated Next time I'll get the framing correct to get the Horsehead too Neil
  21. Hi all, This image is the complete version of the Barnard 33 system HAlpha image I posted about 3 weeks ago. The Horsehead nebula intrigued me as a kid and this image and framing was something I wanted to photograph (or fantasized about photographing) in 1991 when I was a kid using a Tasco 60mmx900 refractor on a alt-az mount. So I guess I can say that this image is nearly 25 years in the making. I did image the horsehead in the past but not framed like this with the flame nebula. Just thinking back about pestering my parent to buy be a t-adapter/ring kit and a SLR "because I was going to photograph the sky like the pros..." Ha, lucky it was too expensive for them to splash out on, knowing what I know now, no pictures would have been taken, potentially a small fortune would have been wasted on film and developing, and even fast forwarding to the time when I restarted the hobby, digital was well in the main arena, so even the SLR, unless used for normal photography, would have been gathering dust... But of course as kids we knew everything, we knew it best.... where in reality we KNEW NOTHING AT ALL. How history keeps repeating... :-/ This image consists of RGB, HAlpha and Hbeta, as well as OIII subs taken across November and December last year. The Hbeta and OIII only had a bit of data of the flame nebula and only Hbeta showed a bit of the horsehead nebula. Looking at the subs I do say that imaging Barnard 33 through Hbeta or OIII filters is not necessary and I think the image would look no different without spending the nights capturing those subs. Hope you all like it, I'm happy how it turned out by using a modded, uncooled DSLR. Clear skies, MG
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