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Found 49 results

  1. AKB


    From the album: EAA

    40 x 1 minutes subs. Quattor 8" CF and Ultrastar mono camera.
  2. From the album: SW 150PDS - DSLR 600D / Atik Titan/Atik 314L1+/Atik Infinity

    Imaged for 60 mins with Atik Infinity/SW 200PDS Preprocessed in AstroArt and Startools Processed in Photoshop

    © B G Wadham

  3. alan4908


    From the album: Deep Sky II

    One from Feb/March 2016 and my first attempt at experimenting with colour balance using the freeware program eXcalibrator. The image is a H alpha blend LRGB and represents about 17 hours. LIGHTS: L:26: , R:31, G:11: B:12 x 600s and 12 Ha x 1200s all at -20C.
  4. alan4908


    From the album: Deep Sky II

    I went for a relatively long exposure with M101, mainly because of its faint spiral arms - I ended up with just over 17 hours. From a processing perspective, the image was sharpened by deconvolution (CCDstack2) and smartsharpen, HDR toning (PS). The Ha was incorporated into the LRGB image by blending the Ha data into the red channel via the PS screen blending mode. LIGHTS: L26; R:31: G:11: B:12 x 600s + Ha: 12 x 1200s, DARKS: 30; FLATS:40; BIAS: 100 at -20C.
  5. spaceman_spiff


    From the album: Photos from Bury

    M101. I stretched the original Tif using DSS. Hardware details: Camera: Nikon D200. Telescope: SW Evostar 120 with Baader UHC-S filter. Mount: AZ-EQ6 guided using a ST80 synguider. Image details: Lights: 31 x 3min at ISO 800, Darks: 20 x 3min at ISO 800, Lights and darks separated by 1 min intervals. Flats: 40 x 1/40s at ISO 800, Bias: 30 x 1/8000 at ISO 100 Date of capture 22/01/2016. Conditions: Clear sky with light cloud, sometimes interrupting the imaging. Seeing was ok (but target was quite high). The guiding seemed ok on the night but quite a few images sowed slightly elongated stars :-(. Possible bad calibration (too aggressive). The wind was very light so that was not the issue. Processing was done in DSS. I am trying to improve the handling of colour. I increased the saturation by 20% and aligned the colour channel histograms until the dark signal at the edge of the image (the darks were not quite cancelling the dark signal) was the same as in the original photos. This seems to work quite well (note to self!).

    © D Elijah

  6. alan4908


    From the album: Deep Sky III

    This is an enhanced version of the M101 (reprocessed) image that can be found in my Deep Sky II gallery. The enhancement was achieved by adding about 3 hours Lum data from the Esprit 150 which boosts detail. The image represents about 20hours integration.
  7. frostynixon


    From the album: Deepsky Objects

    Reprocessed my M101 Data with PI. A total of 11hrs integration time.
  8. Hi, here is last nights shot at M101. This is a luminance run only and was to test to see if the central Halo was still there, and it is, grrrr. I have a sneaky suspicion it is coming from the edge of the secondary mirror. I have pretty much painted everything else matt black, so far. Anyway, Here is the Luminance run. Subs: 10x 300sec, 5x 420sec Processed in Pixinsight. BIAS, DARKS and FLATS applied. Cheers Paul
  9. .... Or so it seemed there were certainly enough horses around me! The clouds decided to budge outta the way at 11ish but I was still a bit busy sorting some things out and finished up by midnight. Work the next day though so I was left with a dilemma... Well, common sense prevailed so I went out to do some astronomy! However, keeping it reasonably sensible (for a change) and rather than a standard marathon session I promised my good Wife I'd be out for only a short while. To keep things simple I packed my 80ed and camera tripod for an uber quick setup with only a couple of EPs - My 36mm Baader Aspheric and SW 22mm. This was going to end up a bit more a test really of what the 80ED can do with a little bit more darkness and more importantly further away from local LP and at least get out after the disappointment of Monday night's rubbish night where I packed up early having seen naff all due to rubbish transparency and woeful dew. I walked a bit further instead of going to my allotment which is reasonably dark and opting instead to go with my lightweight setup to Common Ground close by but at least going a little further away from light pollution. It does indeed make a difference! iPhone app SQM reader gave a reading of 20 and pretty sure I can improve on that going further out to the west (got a couple of locations earmarked that I can possibly cycle to just need to work out the logistics of carrying the scope). I entered the Common gates around 00:45 and there were quite a few horses mulling about doing whatever it is horses do at that time of night. Actually there were loads of them. I made may way through them without trying to startle them and made my way to the highest point at a reasonable distance away from them. After spending all of 1 minute setting up (gotta love a grab n go setup) - on to M101. Directly above me proved to be rather a challenge with such a setup and my 80ED focuser is starting to slip (need to tighten it up a bit) but really it is not too happy about gripping a 2" diagonal and a hefty 2" eyepiece. It was just about managing with the Baader EP but the SW 22mm was a no go (it's reasonably heaver) Perhaps for the future I'll stick to just taking my plossls and Orthos! Star hopped from Mizar following the line of bright stars 81, 83, 84 and 86 Uma directly to M101. Bang! There is was... M101: Thought this would be a challenge with the limited aperture but to be honest it showed much more clearly with the 36mm EP that I've ever seen it with the C8 in my allotment. A decent sized core surrounded by light haze. I tried my 22mm and managed to get it to hold for a little while with the thumbscrew tightening the focuser but it was still slipping if I didnt hold the whole thing up. With the 22mm (very briefly) I could make out a considerably brightening of the area and slight patchiness in contrast. It was too frustrating though to keep going so I went back to the lighter 36mm and observed it a while taking in the view before moving on to M97 and M108 M97 No filter required it was just about visible direct vision but much better with averted vision showing a small circular bit of fuzz. M108 a small fine light area the shape of it showing more easily with averted vision as an extented oblong however I could not see any detail outside of the core. M65 / M66 distinct spiral galaxy form long oblong both showing a considerably brighter central core with the 36mm. Fascinating to see them within the context of such a large FOV. With the 22mm the area outside the core was more more visible with the main core fading slightly away. NGC 3628 to make up the Leo triplet. Just visible with averted vision but a tricky customer! Long ghost like apparition that soon faded from view. Pleased to have got this one though with the 80mm frac! So my mission is to find a place where NGC 3628 is visible direct vision easily with the 80mm Close to mag 6 NELM required? I had a quick scan around Cygnus... So many stars! The Milky Way looked absolutely astounding with the wide field view of the 80mm scope and 36mm EP. I could not see the Veil with it but then I had no filter with me and it was still rather low down. Naked eye the Milky Way was just about visible although this should be better in a month or so. I spent a little while just bombing around the area of the Milky Way with a big cheesy grin on my face. Well that was it it was close 1:45am and I packed up my stuff. Not too far away I noticed I was being observed myself by 4 horses. I'd just got everything stuffed into my back pack and scope in its bag and they decided to make a bee-line for me. Good job I'd decided to pack up as possibly horses and optical equipment don't mix terribly well. Still, It was a shame to have to go on such a wondrously clear night that wasn't freezing but I think I may now make another trip further out to get even darker.
  10. After two years of trying and failing, I finally got a reasonable shot of M101. It took two hours and 48 minutes of exposure, taken over a couple of nights, and it still could have used more. From a dark sky site it would have been easier but from light-polluted London it was particularly tricky to image and I was beginning to think it wasn't possible with my setup. It's a bit rough and the colours are not quite right but I'm pleased to have got this much of it. 21 x 8 minute exposures at 400 ISO 11 x dark frames 20 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Guided with PHD Captured with APT and processed in Nebulosity and Photoshop Equipment: Celestron NexStar 127 SLT GoTo AltAz mount with homemade wedge Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 700D DSLR
  11. alan4908


    I discovered some unguided Lum subs of M101 from earlier this year which I was using to check my new mount/scope combination (Esprit 150/GM1000HPS). So, I thought I'd see if I could use them to enhance an earlier M101 result from last year which was taken with a ED80/NEQ6. The LRGB +Ha image below consists of about 20 hours integration, 17 hours with the ED80 and 3 hours with the Esprit 150. The Ha is blended into the red channel. The image below was created using Registar to align the new Lum data from the Esprit 150 with the previous LRGB+Ha post processed result from the ED80. I then post processed the two images in PS and Pixinsight, treating the the lower resolution (1.46 arc seconds/pixel) ED80 data as "RGB" and the higher resolution (0.7 arc seconds/pixel) data as Lum. Alan LIGHTS: ED80: L:26,R:31:G:11,B:12 x 600s; Ha:12 x1200s. Esprit 150: L:4 x 600s, 4 x 1800s. DARKS:30; FLATS:40, BIAS:100 all at -20C.
  12. This is my first attempt at gathering imaging data over the course of multiple evenings. 91x300s at -20C, TS80 apo + TS photoline x0.79 FF (first night missed proper distance by couple of mms, second night got it right), heq5, ASI178mcc, hutech IDAS p2, TS60 + asi185 for guiding. Other data: x48 darks, 2 sets of flats + flat darks (x256 each) Conditions: heavy LP (red zone, but target was also in direction of city center - worst part of the sky), lousy transparency (NELM ~3-4), changing seeing (at certain times as good as 1", but with noticeable local heat pockets - guiding was nightmare). Just basic calibration and processing: ImageJ, Gimp 2.9, RawTherapy, Nik Collection Dfine2 Image is binned x2 and cropped (I missed a bit of framing on the second night, and tilted FOV at about 6 degrees). All comments welcome.
  13. First Galaxy of 2013 and 5 NGCs Taken with a 7D and 600mm f4 lens at f5.6 30 x 4 minute, 30 x 2 minute and 30 x 1 minute lights at iso 1600 plus 3 x 20 darks and flats and shot in raw, Processed in DSS and then PixInsight and PS It could be better if I could process this stuff properly but I'm relatively happy with it
  14. Depending on your point of view this was either a late night or an early morning stargazing trip. After a few hours of sleep my alarm woke me at 12:30am and I headed to the listed Bortle 1 skies just south of Tonopah, Nv, USA (map). When I went to bed the conditions were iffy due to a weather system that was pushing through - but when I woke up the satellite showed clear-enough conditions to warrant getting dressed and giving it a go. I arrived at my desired location and proceeded to setup the scope. The challenge of the night was going to be the temperature which was hovering around 9F (-12C)...I was dressed in sweater, jacket, ski jacket, jeans, ski pants, ear muffs, a hat that covered head and neck, ski gloves, and two hand warmers. Brrrr. Old Friends. New Observations. Missed Objects. The Milky Way was visible...but not impressive as I've seen from many other dark locations - a clear sign that transparency wasn't at its best...some of that upper level moisture must be hanging around. M31 was below the horizon but I'm sure it would have still been naked eye. The Beehive Cluster (M44) and suprisingly M67 (averted) were both visible naked eye. I didn't really go into the night with any set plan on what to observe...I wanted to ID SN2012ht, try to observe the Horsehead Nebula, maybe check on a few old friends under DARK SKIES, and not freeze to death...pretty simple. After spending some time in/around Orion I realized that my eyepiece was going to be a limiting factor as it was frosting over about every 30 minutes...requiring a defrosting back in the car. Anyway - M42/M43 looked brilliant as usual. The Flame Nebula was just about as visible as I've ever seen it. But tried as I might...the Horsehead eluded me. The jump from Alnitak to the Flame Nebula to HD37903 which is obvious with the surrounding nebulosity. And then to HD37805 which had much less nebulosity in the area. Knowing the Horsehead is w/in the FOV at 110x I started searching but the faint nebulosity that defines the area of the Horsehead wasn't visible. I'd come back numerous times tonight. Moving over to Sn2012ht the jump inside Leo was easier than expected. I found the right star field in my 110x EP FOV and quickly identified Sn2012ht shining around mag 12.x (it's listed at 12.8 and I'd buy that). Two nearby stars at mag 9.9 and 13.1 were both easily visible and the SN was a pinprick of light (like a very compact star...which sounds funny to say) a touch brighter than the 13.1 nearby star. Victory - SN #8 logged! The host galaxy was NOT visible...and with it listed at mag 15.x that's no suprise...but 'companion?' galaxy NGC 3447a (mag 13.1) was just visible. I went back to the Horsehead...was able to get faint nebulosity on and off...but never positively IDed the Horsehead Nebula. Over the next 90 minutes I spent time with some old friends: M81 - the core was strong and both spiral arms were faintly visible...the lower arm in my EP stood out a littel better than the other. M82 - shinging as a bright cigar...the dust lane just visible across the center and an unevenness along the central area...hints at more structure present. M51/NGC5159 - both galaxies showed up well and the spiral arms of M51 were visible...not the best views i've had of the arms...but they were present. The arms did not reach all the way to NGC5159. M101 - one of my best views of this large galaxy - spiral structure was faintly visible and the core stood out better than I'd ever seen it. At this point my feet ached from the cold seeping through my shoes, my EP was icing up too often, and my laptop was difficult to use with thick gloves...so I packed up and headed to the warmth of my car and hotel. I'd love to come back here when conditions allow for more comfortable viewing. It's dark! Overall - several old friends visited, one new galaxy, and one new supernova...worth some frostnip I guess. Happy hunting!
  15. Michael1971


    From the album: DSO's

    10 x 360s ISO 800

    © MichaelB

  16. Having started capturing data for this in Feb, I was beginning to think I'd never finish it with the awful weather of the last 2 months. However, this week has finally yielded some clear nights so I've managed to cobble enough together for an image, and in time for the end date of this challenge. Optics: MN190 Camera: 460ex Guiding: Orion mini guidescope + QHY5L-ii L: 21x600s RGB: 3x7x600s Ha: 10x500s
  17. Left the scope running over night on his one when we had that cold snap, managed 42x10min luminance subs, added to some old 2x2 binned RGB data. This is a crop of the centre of the image to show off the galaxy detail a bit better. Pleased with this, although I might try a re-process when I’m not so tired. Atik 383L+ mono, 190MN, LRGB Baader filters thanks for looking.
  18. Hi! Finally clear sky in Poland! Time to first galaxy image from my QHY163C. I'm still very happy with this camera and now waiting for QHY168C BETA. I hope that it will be even better than 163 40x180s calibrated with darks, biases and flats
  19. First serrious aquisition with new Ultimate 600D from JTW Astronomy. Date: 14-15.may.2013 Location: Valea Izvorului, Mehedinţi, România Object: M101 - Messier 101 - Pinwheel Galaxy Mount: Celestron CGEM Optic system: William Optics Megrez 90mm APO dublet, f/6.2, 558mm WO P-FLAT4 reducer at 430mm and field corrector Photo system: Ultimate 600D Guiding: TS 50mm finder with barlow andQHY5 mono CCD Acquisitions: 12x10' , ISO 800 Processing: PixInsight and PS6
  20. I was just wondering given the difficulty I had last night in trying to find M101 spiral galaxy - it is a mag 7.9 messier object - would this have been washed out completely by the moonlight? I was finding M92 and M13 without much of a problem. I used stellarium on the iphone to try to pinpoint the galaxy but there was just nothing there at all, and I would have guessed it would have shown in my scope. On another note I problem I am having is also trying to translate the scale of what I am seeing on the phone to what I am seeing in the sky. Anyone got any tips how to do this more successfully? Thanks!
  21. From the album: Deep Sky Objects

    M101 - Pinwheel Galaxy OK Sorry to post the same image twice but this just demonstrates the power of better data processing tools. I came across a piece of software called Astra Image Plus (http://www.astraimage.com/) which lets me adjust things with a bit more control and pull out more detail, so I have re-processed . If you want more details the astrobin link is: http://www.astrobin.com/251187/
  22. Toxophilus


    From the album: Deep Sky Objects

    M101 - Pinwheel Galaxy Taken over 2 nights to trial a new guide camera (QHY5L-II mono). The guiding was much better than with my old camera. However I'm still experiencing camera timeouts. I think I have resolved this by running the camera on a dedicated USB cable rather than through a hub, but time will tell. I'm fairly pleased with the result given the ligher skies that we have at this time of year with it never really getting truly dark. If you want more details the astrobin link is: http://www.astrobin.com/251187/
  23. From the album: Deep Sky Objects

    Messier 101 - Pinwheel Galaxy Taken with reasonable seeing and the best guiding I have managed to date. I still need to get the guiding better but we are getting there. This is in monochrome only as I used a Skywatcher Clear Sky filter to deal with the light pollution. I'm very pleased with the end result all things considered. If you wnat more detail, the astrobin link is: http:// http://www.astrobin.com/247272/
  24. Jonk

    M101 Pinwheel Galaxy

    From the album: Jon's images

    M101 Pinwheel Galaxy, 2h25m total, 47 lights mostly 180s each, 47 darks, 10 flats, 10 dark flats, 10 bias, EOS 1100D Baader modified, Astronomik CLS filter, Skywatcher 150P on an HEQ5 Pro mount, PHD guiding. Taken from my back garden in Southsea on Thursday the 26th of March 2015, waxing crescent moon, about 25% illuminated. Quite windy too!
  25. From the album: Deep Sky

    This image was taken on my first night out following the street light switch-off in the nearby towns (between midnight and 5:00am), helpfully the moon was also on the opposite side of the sky by this time. As you can see, I have also also managed to capture a fair few of M101's companion galaxies in this image, including NGC5474 just left of top centre. This is also the first image I have processed using PixInsight's new 'Masked Stretch' process (released this week, replacing the old script version). It has made a massive difference to retaining colour in the cores of the stars and the galaxy, so much so that I may well have to go back and reprocess some of my earlier images which suffer from a lack of star colour (a common problem with DSLR images). Imaging: Sky-Watcher Evostar 80ED DS-Pro, Sky-Watcher 0.85x reducer, Hutech IDAS LPS P2 2", Canon EOS 500D (Unmodified), APT Guiding: Orion ST80, QHY 5, PHD guiding, Sky-Watcher NEQ6, EQMod, AstroTortilla Processing: PixInsight 1.8.01 Date: Jan. 12, 2014 Lights: 30 x 600 seconds ISO 400 Darks: 109 Flats: 102 Bias: 330

    © Copyright Ian Lauwerys, All Rights Reserved.

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