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The-MathMog

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About The-MathMog

  • Rank
    Star Forming
  • Birthday 29/08/93

Profile Information

  • Gender
    Male
  • Location
    Denmark
  1. Andromeda Galaxy Two Pane Mosaic

    Thank you very much. This session went a lot better than I had ever anticipated, when I first pulled out the scope. It is the first time I try doing a mosaic and using AstroTortilla to line it up. All programs behaved well, and the guiding was spot on for once. On top of that, it was a quite cold night, so the telescope was covered in ice, but I guess my DSLR was just loving that
  2. You could call this my first proper attempt at andromeda, thought I've imaged it quite a few times now. But this is the first time I've managed to get most of it in one picture, which required me to do a two-pane mosaic. The left side of the mosaic is stitched 27 subs of 2 minutes ISO 3200, while the right side is 28 subs, + 1 sub of 8 minutes ISO 800 (just to test what difference exposure contra ISO does to details). I am very pleased with the result of it, but I also discovered some of the pains of doing mosaics, as getting an even background was very hard. Gradient X-terminator would do a decent job, but couldn't quite nail it, so I used it in conjunction with a few other techniques. The stitching was easy and painless, as I just used Microsoft ICE. Some feedback on the processing would be lovely, as I am not sure if this is my final version. I've starred myself blind processing it.. 2-pane mosaic 56 subs (ISO 3200 and 800) 2 minute exposure (+one 8 minute) 1.96 hours Total Exposure Skywatcher 150pds Celestron Advanced VX Mount Nikon D5200 Explore Scientific HR Coma Corrector 7235x5838 pixels Stacked with DSS, stitched with Microsoft ICE, processed in Photoshop CS2
  3. The-MathMog's Images

    Just some of my images in general.
  4. M31 process try and try again

    Simply adjusting the color balance would help that picture out a lot. More red, less cyan, and some tweaks here and there I honestly do that quite often too, as I can find that pulling out color afterwards can be quite hard. Hence, why I also align the color channels, and give like a 20% saturation boost in DSS, and saving that
  5. M31 process try and try again

    Gave it a go. Here is my result. My only real advice, and something I see you're aware of, is to take dark frames. There is streaks of hot pixels throughout the picture, which is hard to do much about, without meticulously patching them away one by one. Although, "Hasta La Vista Green" does a decent job of removing the green ones
  6. M31 process try and try again

    What is the sub lengths, and how many did you take? That might also give a clue into how much detail you can pull out of it.
  7. Trouble with Abberation

    Looking at the smaller stars, it looks more like tracking errors to me. Where it exposes on some pixels, moves slightly (backlackish or bump), and then exposes on some just next to it. Even if it was only in one frame, then it would still show through when only stacking 8 images. But if it is tracking-errors, it might be periodic errors causing them. But just to fill in some other info. Are you guiding? And what mount do you use?
  8. Astrophotography image processing

    +1 for budgetastro. You can find his videos on youtube under "Doug German", those were the videos that got me started! https://www.youtube.com/user/namregd/videos
  9. Astro Quiz

    Can't find anything astro-related to the peaks in the picture, but just behind them on Sairécabur, there is the Receiver Lab Telescope that works in the terahertz range And to the right of the picture's orientation as mentioned is the Cerro Toco where the The Atacama Cosmology Telescope and the Huan Tran Telescope (POLARBEAR) lies. That is one weird looking polarbear though!
  10. Astro Quiz

    The only one that then comes to mind, is the "European - Extremely Large Telescope"? But the site doesn't quite look right to me.
  11. Astro Quiz

    First thing that comes to my mind, is that one of the peaks in the background, looks like a quite suitable spot to build an observatory
  12. coma adjustment

    What Coma Corrector do you use? That might give insight in how much spacing the CC needs. Also what spacing do you have right now? That right there makes me think the CC is way too close to the camera, but it's not a topic I am very experienced in.
  13. Imaging During Full Moon Periods

    Ha seems to be the recurring solution to this, and something I have indeed considered. But by Nikon D5200, is indeed NOT modded, so you do say that it won't produce anything worthwhile without having that done first? Would need to find a place that does that around here then, as I am not very confident that I could do it myself (probably could, but would rather not risk it). That is a very nice image you've shot there, and just shows that you can really produce SOMETHING on those "forever dusk" nights! I'll just need to expand my knowledge of what open and globular clusters that are in the sky, and which one that fit well in my FOV. Actually gave it a go last night on M39, with quite decent results, other than it being a quite dull cluster in itself
  14. Weather, work and other factors has made it very hard for me to get as much out imaging, as I would've liked. Like 3 times since August. Weather has just been unforgiving, and quite a few times now, the clear windless nights have pretty much always hit on night where the moon has a huge influence. 80%+ illumination. One of these nights I tried imaging bodes nebula, and the moon set like an hour before sunrise. And you can see a huge difference between the images just before, and just after the moon-set. The ones before barely showing any detail. So, to cut to the chase, do you guys have any advice on what/how to image during these periods? The moon is an obvious choice, but that is not really something that feels rewarding for me currently. Do you guys not image at all during these nights, or can some open/globular cluster be of rewarding value? I could just go out and test for a few nights, but even that is hard with the weather.. I also use a Baader Neodymium filter, which seems to help a bit, just not quite enough
  15. Sudden star trails

    How do you polar-align? Is balance alright? And is it only in certain parts of the sky? I wonder if certain polar-alignment routines is affected by the change from daylight-savings time to normal time. Like I do "All-Star-Polar-Align" on my AVX, which takes the alignment stars into accounting, and if it think the time is one hour more/less than it actually is, would this produce an error?
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