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Found 125 results

  1. So, although I had some issues with my auto guiding (which I found out afterwards) I did manage to get 9x180s exposures and 5 darks of Andromeda and give both stacking (using DSS) and processing (using GIMP). My first attempted DSO.... I am pretty sure that people could get far more information out of the TIFF file from the stack. Hopefully I will get another clear night soon. I am in a heavily light polluted area so I do have a clip in filter on my DSLR which I think took a lot away. More practise needed! Lance
  2. beka

    DSLR M31

    Hi All, Having had to move to an apartment where I could not use my CPC 1100, I decided that I have to see what I could do with my NexStar SLT 102 (alt-az achromatic 102mm f6.47 refractor). Setting up on my narrow balcony was challenging and the altitude bearing was so loose that it almost moved from the weight of the Canon 700D. I could not see M31 in the estimated 3.5 magnitude sky so I did a two star alignment and used the live-view to focus on a bright star. I then took a 15 second exposure after slewing to M31 which allowed me to see that I had it in the field of view. After a few more 15 second exposures and playing with the motion controls I managed to get it centered. The resulting picture is from 39 subs of 30 seconds at ISO 1600, 9 flats. The images were stacked and stretched with Siril and then I played with the curves on Gimp, cropped and scaled. Not too unhappy.
  3. My M31. Shot over 3 nights. Only 11 total hours. LRGB only with Astrodon filters, ZWO ASI1600MM-C camera, and the WO Redcat.
  4. Hey.. So last night i went to a beach that had one side completely dark ,and the other filed with light pollution . In the dark side,the milky way gqlaxy was pretty obvious and the sky was full of stars. Andromeda was rising and i wanted to take a peak, however , it was low on the horizon and had a slight haze(skyglow).It wasn't visible with the naked eye and in my 10x50 binoculars i could just resolve the core. I heard Andromeda would be visible with the naked eye as its mag 3.3. But the milkyway was and Andromeda wasnt.What went wrong?
  5. I currently am on holiday in my father's hometown, a small island near rhodes called symi.Symj, is a pretty small town,with only about 2000 residents.That means that the light pollution levels must be low. Acknowledging that, i called my friends, grabbed my 10x50 bins(that i got for 20€ from Turkey),and went on my way to find a dark site.About after 20 mins of walking (from the city),i stumbled upon a beach, it was dark, so i went in.There i decided to lay on a sunbed that was there.After looking up(not being dark adapted, my friends just kept turning their flashlights on for some reason), i saw the haze of the milky way stretching from Cassiopeia to cygnus and beyond!I was amazed as i ve never seen the milky way before and smudged it off as clouds until i confirmed it was the milky way from an app! The weird part was that at just straight overhead, was the port ,which had many lights, and as a result the sky appeared half bright and half dark. I turned over at Sagittarius and headed over the lagoon nebula. Brilliant! 3-4 stars in a line surrounded by bright nebulosity.(while still being in the haze!) Afterwards i headed to cygnus,it was a real light show! I saw the milky way layering on top of Cygnus while catching a glimpse of m23 and yet again, failing to see NGC7000 . Then, with the corner of my eye, i detected something moving, then turned over to Cassiopeia to see a shooting stsr!(it was my first time seeing one!!!) Was very brief, yet enjoyable. Right afterwards i turned over at the Perseus double cluster.Magnificent! Appeared as 2 small balls of light , almost connected yo eachother. Finally, i realised that finally, the target i was seeking to observe all year long, M31 was into the area with the light pollution! What a shame! While also being low on the Horizon, I couldnt see it with the naked eye. I observed it with ny binoculars for 10 minutes or so . The core was resolved nicely with some hints of outer nebulosity. Overall a great night and now, i wished i had my 8" dob with me.... (Sorry for any granmar mistakes, im currently typing this at 2 am xD)
  6. Discovered 12 March. Mag 15.1, type unknown (tbd) http://www.rochesterastronomy.org/novae.html#2019bsd Could be one to watch as it should brighten further... shame it is so poorly positioned at this time of year Alan
  7. One of my favorite deep sky objects in the night sky, the great Andromeda galaxy. All the processing has been done with Pixinsight. The scope was FSQ-85 with the good old unmodded Canon 6D. Around 5 hours of data with 5 minutes exposure. Hope to add some short exposures to the core someday.
  8. My first ever M31 ! For us in NZ this object is a real challenge as it never rises more than a few degrees above the horizon. This is actually as high as it gets and I have included a wide field shot to demonstrate its position at the moment. Coupled with fairly ordinary seeing I’m really rather proud of my first attempt. It really tested my polar alignment and my excellent star adventurer Mount. There is a nasty gradient and it’s a bit brown but apart from that I can see dust lane ! I’m still saving for pixinsight as I suspect there maybe more info in this image. All comment and criticism is welcomed. Cheers, Andy Canon 6d 75-300mm @ 300mm Iso 4000 32X120 seconds ( 1 hour 4 minutes total integration) 15 darks 20flats 20 bias Processed in photoshop and Lightroom
  9. From the album: DSO, Nebula, Galaxies, Comets etc

    M31 The Andromeda Galaxy Imaged using Skywatcher Equinox 80 PRO ED and Altair Hypercam 183C colour camera A total of 24 x 300 second exposures

    © vicky050373

  10. Messier 31 Andromeda Galaxy Distance from Earth - approx 2.5 million light years After spending ages getting a decent polar alignment, the clouds were on their way in so I only had a small window of opportunity remaining. This was my first real run with the new setup (minus the ST80 and ZWO ASI120 as i was having issues there) and I almost gave up. SO glad I didn't!! Focus was off a bit though I think and I've definitely over-processed EXIF: Nikon D5300 270mm f / 5.6 @ ISO 800 21 x 30 second subs Bortle 5 Stacked in Sequator. Very quick minor crop and global edits in LightRoom. No darks/flats/offsets
  11. Marci

    M31 - Andromeda Galaxy

    From the album: Marci’s Astropix

    My first foray into astrophotography... Canon EOS 650D, 200s subs @ISO400... no idea what total exposure was.
  12. Hello, This is my first astrophotography with my own scope (and first light for this scope). I've always been fascinated with this galaxy, and it was my childhood dream to capture it. It finally happened ;-) You'll find all the technical details on the description on flickr. Overall it's the first light of my skywatcher Quattro 250mm/1000mm f4, NEQ6, with an unmodded Canon 6D. Integration time: 1h59 Processed with PixInsight. link to flickr for the full resolution and description:
  13. Hi everyone. I'm back, and trying again to get a decent DSO photo! This is my personal favourite so far, so I must be getting better! haha Still a long way to go with the processing skills, but I'm sure I'll get there. 23x Lights - 120 Seconds - ISO800 20x Darks 20x Flats (Yes! I've started to use these!!) 20x Bias Processed using Photoshop and ProDigital Astronomy Tools Hope you like it. Thanks, Mike
  14. From the album: Deep Sky III

    I was interested to see if I could get more detail from my M31 4 panel mosaic acquired with my SW ED80 by applying new lum data acquired from my Esprit 150. With the same camera, the FoV of the Esprit is only about 1/4 that of the ED80, so I decided just to enhance only the core with the higher resolution data. I used RegiStar to overlay the existing mosaic with the Esprit 150 lum data and then blended the two images together using PS and PI. The details of the subs are below: ED 80 1 2 3 4 L 16 16 18 12 600 s R 19 12 15 13 600 s G 16 18 9 10 600 s B 18 19 13 16 600 s H 5 8 6 6 1800 s Esprit 150 (M31 core) L 27 300 s
  15. I completed a 4 panel M31 mosaic last year which was imaged with my SW 80 ED (see my album Deep Sky II). Whilst I was happy with the result, I was interested to see if I could enhance the core detail with additional subs from my new SW Esprit 150, which would give a higher resolution image. I decided that I would collect just new Lum data and then use a combination of RegiStar, PS and PI to overlay the new high resolution Lum data with the lower resolution data from the ED 80. Since the FOV with Esprit is about 1/4 that of the SW 80 and the fact that I didn't fancy creating a 16 panel Lum mosaic, I decided to focus only on the core of M31. I estimated that a 300s Lum exposure should be OK and this was confirmed by checking that the pixel level of the resultant image was below my cameras non-linear region. The result represents about 55 hours total integration time. M31 (SW ED 80 and Esprit 150) M31 crop Alan The details of the subs are below: ED 80 1 2 3 4 L 16 16 18 12 600 s R 19 12 15 13 600 s G 16 18 9 10 600 s B 18 19 13 16 600 s H 5 8 6 6 1800 s Esprit 150 (M31 core) L 27 300 s
  16. From the album: The-MathMog's Images

    2-pane mosaic 56 subs (ISO 3200 and 800) 2 minute exposure (+one 8 minute) Skywatcher 150pds Celestron Advanced VX Mount Nikon D5200 Explore Scientific HR Coma Corrector 7235x5838 pixels
  17. This started on 10/31/17 I had set my 8SE up at around 7:00 pm Transparency: above average 4/5 Seeing: average 3/5 I viewed a number of objects with my 8SE: M31, M32, M110 was not able to see. M57, M27 are always available. M13, M92 sitting very pretty in a clearer patch of sky than usual to the west. I was early enough to catch some favorites, M8, M16, M17, M20, M21, M22, M23, and M24 I then took a break and when I came back I grabbed my binoculars, 10x50's. First I viewed Pleiades, then Hyades, then over to Mirach, Nu, Mu, and above that to M31. I couldn't see M110 or M32 in binos. I've been searching for Kembles Cascade with binoculars, which I've found with the 8SE, though you can only see two stars at a time at that magnification and narrower FOV. So I'm looking around the general vicinity below Cassiopeia, in Camelopardalis and eventually wander into Perseus and find: The Double Cluster with my binos. I slewed the 8SE over to NGC 884, and NGC 869 to confirmed that I had in fact found the double cluster in my 10x50's I finished my bino tour of the sky on the Coathanger Cluster. I have never viewed the Coathanger cluster through my telescope. Well, maybe once just like M45 and Hyades. I always use binoculars to look at these objects now. I finished the evening on M42 which I end up looking at for nearly an hour through both the binoculars and my 8SE
  18. From the album: DSO

    54 x 2 minute subs. 9.25" Hyperstar / QHY8L on Avalon M-Uno mount. Guided and dithered with PH2 + Nebulosity. Processing in Nebulosity and MATLAB. 68% Moon, which may explain the lack of good colour?
  19. ED80 on iOptron cem25 Canon 7d 13 x 2 min subs + 9 x 10 min subs Would have kept going but the meridian flip killed me Could be worse, could be better.
  20. This imaging session, occurring over 2 nights was not without its mistakes and confusion! Setting up the first night I seemed to spend most my time trying to remember how to configure the capture software correctly. The second night I decided not to connect the guide camera to the PhD Guiding 2 correctly and spent 30 minutes establishing that fact. However, out of the jaws of chaos (which extended to the processing of the image) came one of my better efforts on this object. It’s also the largest amount of data I’ve collected with almost 5hrs going into the can for processing. Details Object name Andromeda Galaxy Object ID M31 Date(s) 11 and 12 October, 2017 Telescope Altair 115mm Camera ASI1600MM Luminance 89 x 2 min = 178 min or 2.96 hrs Red 16 x 2 min = 32 min Green 21 x 2 min = 42 min Blue 19 x 2 min = 38 min Ha 0 Oiii 0 Sii 0 Total time 4.8 hrs Frames 0 Processing PixInsight / Bias, Flats, Darks / Masked Stretch / Curves / ATWT I’m having fun zooming in to the different parts of the galaxy to view the H2 regions (star forming) that I was quite surprised to have caught in such numbers. These regions, swimming amongst the sea of big, hot blue stars destined to burn out quickly, are similar to our own Orion Nebula. Moving to the core of the galaxy and it super massive black hole the cooler, longer lived red stars dominate. Up to the left M110, another galaxy bound to Andromeda has resolved quite well – it can off look very pixelated – and nearby the big blue star who’s name I cannot find This galaxy is 220,000 light years across and contains a trillion stars which is twice as many as in our Milky Way galaxy. I think I now need a lot more colour data for this but its a start. David
  21. rotatux

    20170922 m31 (200mm)

    From the album: Alt-Az / NoEQ DSO challenge

    M31 - Andromeda Galaxy on 2017-09-22 Gear: Olympus E-PL6 with OM-Zuiko 200mm/4 at F/5.4 and TS-Dydimium filter on Celestron NexStar SLT Capture: 60 lights (/80% keep) x 40s x 3200 ISO, 13 darks Sky: moonless, average (didn't get any SQM, was prb 18-19), 50km from Paris, France Processing: Regim 3.4, Fotoxx 12.01+ Edit: for full size see here: https://stargazerslounge.com/topic/228101-the-no-eq-dso-challenge/?page=116#comment-3294377

    © Fabien COUTANT

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