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Found 61 results

  1. A quick shot of the Orion Nebula (M42), one of my favourite celestial objects and a really satisfying target. I've been waiting a year for an opportunity to image this nebula again, this time with a polar alignment and guiding to enable much longer exposures than the 15 second subs I took last time and with a lower ISO to reduce noise. 13 x 4 minute exposures at 400 ISO 8 x dark frames 10 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Total exposure time - 52 minutes Guided with PHD Processed in Nebulosity and Photoshop
  2. So as this season's first image, I have started on the Orion nebula. I had guiding issues, but with my newly polar aligned observatory I could do 150sec exposures without issues. 1h 37min total. 6x 10 sec 18x 30sec 17x 60sec 28x 150sec I think it's a good start to continue on. I have darks and biases for it, but they where taken after I processed. I'll save them for when I get more data. Let me know what you think. It's been a long summer, so had to learn 'everything' again. At lest I have polaralignment within 5 arcsec in both axies this year
  3. It has been a long time since I last posted on here; primarily due to a change in job that keeps me away from home during the week and a clear sky during my weekends at home has been a rare event in deed. However, the recent planetary alignment has obviously brought me luck, as a combination of being at home and having clear skies, stable atmospherics and no moon finally provided me with an opportunity to fully test the potential of the Altair Wave 115 ED Triplet Refractor, combined with the Planostar 0.79x Reducer/Flattener - and boy was it worth the wait! I wanted to compare the results to my previous scope - the extremely capable (in my humble opinion) Sky-Watcher Explorer 190MN Pro Mak-Newtonian Astrograph. So I chose one of my all-time favourite subjects - M42, the Great Orion Nebula and Running Man. The image I captured using my 190MN was the first of my own astro-photos that made me go wow! The image comprised of 10 x 300s, 10 x 200s and 25 x 45s exposures, captured using a QHY8L and Nebulosity 3 then processed using Photoshop CS6. The final result is now framed and has pride of place on the wall above my desk. I was convinced it was going to be hard to beat. My previous attempt at M42, using the Sky-Watcher Explorer 190MN Pro Now, before I compare the images I must point out that this is not going to be a direct, scientific comparison. For a start, there are a couple of significant differences between the 2 scopes; FOV being the most obvious, with 1.35° x 0.9° for the 190MN Pro, vs 2.13° x 1.42° for the 115ED with the 0.79x Reducer/Flattener fitted. The aperture being another significant difference, with the 190MN Pro being 65% larger than that of the 115ED. The 190MN Pro is also marginally faster, with a Focal Ratio of 5.3, vs 5.53 for the 115ED. However, I did use the same QHY8L CCD camera to capture the image and the NEQ6 mount and Lodestar XPress guide camera were also the same. In an attempt to compensate for the smaller aperture and slightly slower Focal Ratio, I increased the length of the exposures to allow as much light to reach the camera's sensor as possible. The final image, which you can see below, is the result of 14 x 600s and 15 x 30s exposures, captured using the QHY8L and Nebulosity 4, then processed using Photoshop CS6. Some may say this is an unfair comparison, but all I wanted to do was see if the Altair Wave 115ED was capable of achieving similar results to the Sky-Watcher Explorer 190MN Pro. The answer is yes - definitely! But that is my opinion - let me know what you think. My latest version, using the Altair Wave 115ED and 0.79x Reducer/Flattener
  4. 'First light' from my 10 inch reflector mounted on my new concrete pier. ( Higher qualiy image : https://www.flickr.com/photos/mike-oday/16305631851/in/pool-florion ) Nikon D5300 (unmodified) Baader UHC-S nebula filter PHD2 guiding 0.5, 8, 30 & 120 sec exposures (up to 20 of each) at ISO800 aligned and stacked in Nebulosity
  5. I've been (im)patiently awaiting the darker winter nights returning so I could see what my new equipment could achieve in terms of astrophotography. Last weekend saw a clear night where I could take a short trip to a dark location and image a few objects. Below are a few of the images obtained. All were taken with a Canon 650D DSLR on a SW 80ED refractor. Due to this being my first real chance in really dark skies to try out the kit I wanted to image several objects to assess the capabilities rather than concentrate on getting lots of subs on just one target object. The end results are from a stack of about a handful of unguided exposures, each of 2 minutes or less. I'm quite pleased with what could be achieved in such a short period of time with these brighter winter favourites - they are certainly miles better than I've ever managed before with previously owned more modest equipment. Hope you like them too
  6. Now this is the way to ring in the New Year. I took advantage of our unseasonal like crystal clear skies we are enjoying and forgo the traditional festivities and spend it under the stars. I was finally able to make another dream come true and at last image the Orion Nebula with my iOptron Zmount and AT65EDQ. With an amazing 5 hour session that wrapped up at about 3 in the morning here's the results. Let me know what you think of the processing. 15x5 seconds, 15x30 seconds, 15x120 seconds, 15x300 seconds. Each series went thru DSS and then blended together in PS4 and tweeked in LR4. The ORION Nebula by Leveye, on Flickr
  7. From the album: Nebula

    First image from my new NEQ6 Pro driven mount, all other images before this were static. Sky Watcher 200P prime focus, 10x 60's lights, darks, bias and flats. ISO 200 Bortle 6 Yes I know there is a plane track through it.
  8. From the album: Stargazing

    © Dave France

  9. From the album: Deep Sky Objects

    Modified Canon 1100D Canon 500mm f/4 L IS @ f/4.0 AstroTrac TT320X mount ISO800 17x 90 second subs (interrupted by cloud) Taken in Fuerteventura
  10. From the album: DSO, Nebula, Galaxies, Comets etc

    Taken using Canon 100D on SkyWatcher Star Adventurer - 300mm lens, 30 second exposure at ISO 1600

    © Vicky050373

  11. 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

  12. 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
  13. The Orion Nebula core 21/12/2017 21:32 (1300 light years) GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHY5L-IIC + IR cut filter f: 1000 mm f/5 300x1" + 248 dark Total exp: 5 min Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/
  14. One night after complaining on the forums that observing opportunities are so few and far between in the UK during winter and I look up to see clear skies and a blindingly bright moon. My preferred targets are DSOs but having recently bought a Baader Neutral Density Moon filter (0.9) I thought it might be a great time to try it out. I'd also recently bought that thingy that lets you attach your phone to the eyepiece and so I took the picture below and I'm fairly pleased with the result. I thought that the blue fringe of doom was exclusively a refractor thing which is why I was surprised to see the blue fringe in the picture. I have owned my Skyliner 200p Dobsonian for around ten years and so it might surprise you to know that I have never managed to see the Orion Nebula through my telescope, or any other telescope for that matter; so last night, with the moon 96% of full I thought I'd give it a try. Less than ideal conditions you might say but I have to tell you, it was still spectacular! I was able to see a surprising amount of detail and I also worked out (at long last) which time of year and what time of night I can see the whole of Orion from my back garden (mid to late January onwards at around 11pm) rather than the utterly light polluted front garden. I cannot wait for a moonless (clear) night so I can sketch the nebula! I did also discover that my collimation efforts were less than stellar (pun intended) and so, back to the drawing board. Overall it was a fantastic night's observing! I was able to spend a good while not just looking at the nebula but observing it and teasing out as much detail as I could using the usual old tricks. The night was clear but all my back garden observing is done over the neighbours' houses, so heat shimmer and therefore focus was an issue. I actually used my Baader Neodymium filter to reduce the effects of light pollution and increase contrast which it did very well. I'm seriously itching for a clear moonless night! By the way if anyone can recommend a good observing chair my back would be very grateful
  15. Not that anyone could get fed up with this object... Date: 01 January 2018 Equipment: SXV-H9, Vixen 114mm f5.3 ED refractor, guiding with Lodestar X2/PHD Subframes: 30 x 300s, 100s & 20s H-alpha, 20 x 20s & 100s RGB 2x2 binned, 20 flats for each channel, no darks (hot pixel removal in Astroart instead). Images were acquired and pre-processed (aligned, stacked, denoised) in AstroArt4, then composited in Paint Shop Pro7. The Orion Nebula presents quite a challenge to depict because of the wide brightness range of its key features. Many early CCD images of this object as shown on the web "burn out" the "trapezium" region of the four central stars in attempting to show the outlying nebulosity. I use the "layers" function in PaintShop Pro, stacking the longest exposures on top of shorter ones, and then carefully use the "eraser" tool to remove overexposed areas, leaving the underlying correctly exposed regions to show through. This has to be done with care to avoid introducing obvious processing artefacts. Whilst the latest image processing programs such as Pixinsight have "dynamic range adjustment" features that can automatically produce an even distribution of brightness, some of the resultant images can seem rather strange to my eyes. Programmes like that are way beyond both my budget and my understanding! LRGB combination (using the H-alpha stack as the luminance channel) went well in both Astroart and PaintShop Pro. The PSP version was a lot greener than the Astroart one (though you can “weight” colours to compensate for CCD sensitivity at different wavelengths), but I preferred the PSP output as it hinted at the greenish hue of the nebula that is so clearly discernible though the eyepiece. All of the brighter features seen in the above image show clearly through my VC200L and a 25mm eyepiece. The central trapezium of four stars shines brilliantly against a bright silvery background, which fades into the convoluted greenish wings of the surrounding nebula. The dark channel between the main portion of the nebula and the upper candle-flame is clearly seen. I strove to retain all of these key features in the image above, as well as highlight the extended nebulosity that the eye cannot see. Any comments, criticisms or suggestions gratefully received...
  16. Had a night out in a feild with a mate last night, we were aiming for a bit of polar alignment / guiding practice. It all went pear shaped very quickly ... He forgot the top half of his mount so we both played with my AVX. Pole master polar alignment went well, as did PHD2 with an Altair gpcam finder guider on a Zenithstar 71. Put the Nikon D5300 on and focused roughly with a Bahtinov, then started BYN (back yard Nikon) Would it connect ? No chance ! Tried various reboots etc. No joy. So We tried Steve's camera... Canon ! But we could swap T adaptor , yay ! But no, his was a T to M48 to screw straight on his Star 71. So I bunged my Nikon back on and pressed the shutter manually for about 20 30 second exposures @ 400 iso. All good fun though and we had a great laugh. Edit : tried connecting Nikon this morning and it worked straight away ... I laughed , kind of hysterically ?
  17. Observing Information DSO - M42/M43 Date - 15/03/17 Time - 20:15 Lunar Phase - 89% Seeing - Good Equipment - Celestron Nexstar 6SE Eyepieces - ES 24mm 68 degree Additional info - Wow is all I can say with this one before last night my favourite Nebula was the eagle Nebula now I'm not so sure. First thing that struck me when I started observing was the beautiful pattern of stars the 4 close together in the middle with the bottom right one being the brightest and the 3 star at the bottom. The longer I observed the more detail jumped out at me the swirl of gas almost like an arc was simply breath taking not since I first observed M13 my first ever DSO have I been so overwhelmed. M43 was a bit strange though I could make out the star but no gas cloud or shape to it it's at mag 7 so shouldn't have been to much of a problem maybe next time I will use one of my Nebula filters but my O lll stayed in its case as I didn't feel the need. I also spent some time observing Jupiter, I could make out 4 of the moons 2 of which were very close in proximity these turned out to be Euopa and Lo. The other 2 being Ganymede and Callisto in that order. I could also make out the 2 main bands of Jupiter the north and south equatorial belts but no luck with the Great Red Spot still beautiful to observe though here's an image of stellarium. The moon unfortunately was up a bit late but got about 15 mins observation time beautiful crisp craters and lovely shadows again along the terminator. So a very good session and one of my favourite sketches to date ? Clear skies ?? Richard
  18. M42 took quite a bit of processing time. That is a bright core even with very short exposures. Then how much of the fainter stuff do you try to pull out? There might be more to be found in the data, but I am trying to keep things looking 'natural'. Then again, what is 'natural'? I'd be interested to hear what people think. Data capture was completed in February 2017. It consists: Luminance: 15x15" bin 1x1 Luminance: 16x60" bin 1x1 Luminance: 16x600" bin 1x1 Red: 8x15" bin 1x1 Red: 8x60" bin 1x1 Red: 16x600" bin 1x1 Green: 8x15" bin 1x1 Green: 8x60" bin 1x1 Green: 16x600" bin 1x1 Blue: 8x15" bin 1x1 Blue 8x60" bin 1x1 Blue: 32x600" bin 1x1 TOTAL = 14.2 hours Astrodon filters from the Tak 106/QSI 683 rig at DSW.
  19. 0hmmm. can't seem to get tight focus on stars; finally got hold of a bhatinov mask and took shot (see below). unless i'm missing something, this looks ok yet when i take mask off stars look like small indescript blobs. star used was rigel - panned over to orion nebula and well kind of meh sadly. i tethered camera to laptop, zoomed right in 10x and still no better. used canon eos utility. should i upgrade to eos backyard or what else can i try? checked my collimation too and looks grand under high magnification. help!!
  20. I've been playing around with this image of the Orion Nebula (M42) for a few days now, trying to get as much of the gas cloud as possible to come through while keeping the colours as accurate as I can. It still isn't quite perfect but I reckon it's as good as I can get it at the moment after following some of the very helpful tips given to me here. I added another 78 light frames, put in a luminance layer and blended three versions. Data: 169 x 15 second exposures at 3200 ISO, 14 x dark frames and 12 flat frames. Processed in Deep Sky Stacker and Photoshop CS6.
  21. I never get tired of ogling the Orion Nebula, and now I wanted to share one of my first astrophotos of the beautiful star making factory. A simple, single 30 sec. exposure shot on my trusty old Nikon D50 using my Orion StarMax 127 as a glorified telephoto lens. Fun stuff! Astronomical evenings, Reggie
  22. This has become a tradition ever since I first got my EQ drive, to snap a shot of the awesomely beautiful Orion Nebula at least once during its tenure in the night time sky. No stacking subs, darks, biases, or flats. Just a fun one-off [1x30s] using my Nikon and my Orion 127mm Mak-Cass (my Lil' Mak). Enjoy, loungers! See you 'round the galaxy! Reggie
  23. Last night I got to put my full spectrum DSLR to it's first test, one obvious target was m42. I did rough polar align & didn't even collimate the scope, just wanted to get straight to testing the new camera. I haven't done any editing nor stacking, this is something I will be experimenting with in the following weeks. I also collected some data (20 lights) on the Pleiades & NGC869 double star cluster and the star Capella, which I will experiment on & play around with. It was recommended to me to get a coma corrector, I haven't yet. After I've played around a bit with the equipment & learned why I need it, I might get one. Anyway, here's M 42 Orion Nebula, 1x 30s exposure sub unedited - ISO 800. I was extremely impressed when the image popped up on my PC screen, the camera is excellent!
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