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About moise212

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    Proto Star

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    Romania, 45N
  1. moise212

    Bubble Mosaic Ha

    Yes, I didn't think about that. I have already almost 4h.
  2. moise212

    Bubble Mosaic Ha

    Looks good on the PC too! Perhaps you should hurry and shoot some RGB before the Moon rises again during the night?! You can still add Ha when there's the Moon around, especially as the bubble is quite far from it.
  3. moise212

    Bubble Mosaic Ha

    Looks fine on the phone at the first glance
  4. moise212

    Cheap UV/IR cut filter for my guider scope

    PHD doesn't require a very fine focused star, it could even calculate better the centroid of a slightly out of focus star. Perhaps a better filter would be a deep red/IR pass in order to reduce the atmospheric scintillation.
  5. moise212

    secondary mirror specs?

    The astrograph term refers mostly to a telescope being designed for imaging, not for visual. Therefore it is possible that you cannot achieve focus with the original focuser by simply popping an eyepiece in. A secondary mirror diameter should increase for 3 reasons: You want a wider fully illuminated circle You have a wider primary mirror You have a faster f-ratio You moved the primary closer to the focuser and you want to keep the same fully illuminated circle. This is equivalent to 1.
  6. moise212

    First refractor for imaging

    There's an even smaller TS ED doublet, the 60/360. Coupled with the 0.79x reducer/flattener, you get a final ~285mm focal length.
  7. moise212

    First refractor for imaging

    I saw a few good results at focal lengths longer than 300mm, but there were just a few. Personally, I'd rather choose a shorter lens
  8. moise212

    First refractor for imaging

    I then support the others' opinion that a 300mm + lens/scope will make imaging difficult, perhaps a shorter FL lens would be a better match
  9. moise212

    First refractor for imaging

    If I were you, I'd go for a second hand EQ5 and put a set of motors and enhanced controller (which supports guiding too) to drive it. I've one setup like this and it costed me about 300€. It should be a lot sturdier than the star adventurer and you can put some heavier stuff on it for visual observing. The TS 72ED F/6 + 0.79x reducer/flattener combo costs 664€, the SW 72ED + dedicated flattener cost 490€ at FLO. Neither of them has a finder included in the package. Add a guiding scope and camera bundle at ~200€ and you're at 1000€ with the SW, a bit more with the TS scope.
  10. moise212

    Bubble Wide Ha

    I also have some data on this target from last year, but the processing skills at that time didn't help too much. I can try to reprocess, but I should probably get better data too. Anyway, you know that you keep the resolution you have now, you just extend the area... that will be about 4600x6800 pixels or a ~60x40cm high res print at 300dpi
  11. I noticed that I can't change my signature due to the winning challenge badge being larger than the maximum image admitted dimensions
  12. I just noticed that FLO reduced the shipment estimation for the reducer from 40-60 days to 20-25 days.
  13. This has to be it then, I don't think you can do much more until you improve this. That's what I also avoided for a while. I was very wrong. PixInsight is fast, doesn't consume much memory, the only real requirement from my point of view is to have a decent display and resolution. You can get away for quick processes, but I would avoid working on my laptop's screen as much as possible. Going to PixInsight processing was one of the best improvements since I started astrophotography. I calibrate and integrate with APP though.
  14. Focus looks spot on with the Bahtinov mask, but I do realize now that this target is 10 degrees lower that is for me. I don't usually attempt to image a target below 30 degrees, 25 if it reaches 30 max. A trick to have a better guiding graph is to use a deep red/IR pass filter for guiding, however this doesn't necessary mean you will have a better result, maybe just a better graph. I just recently bought a new EQ6-R and the result is much better than I expected compared to what I used to get with the AZ-EQ5 due to a better guiding. Whilst the smaller mount was guiding ~1.2-1.4" RMS with occasional spikes of 8" p2p, the new bigger one guided on the same area of sky at 0.6-0.7" RMS with maybe several 2" p2p exceptions. How bad was your guiding? I expected your NEQ6 to behave about the same as my EQ6-R does. The reason I was saying that the focus looks a bit off is that the Oiii image seems to have the stars looking somewhat flat a wider area around the center. This in comparison to the Ha image where the stars are bright in the center and they start fading out much closer from the center. I don't know yet how to explain this scientifically. It can be though due to atmospheric dispersion which affects more the shorter Oiii wavelengths compared to the longer Ha ones. Or could you have had temperature focus shift? How does the first frame look compared to the last? About deconvolution, I use PixInsight. For a long while I avoided it because I didn't have enough time to learn a new tool, but in the end, I get now a much better result even faster. Most probably I can get better results, but after 2 months of using it, I feel comfortable with it now.
  15. moise212

    Bubble Wide Ha

    Yes, that's how I tried to be subtle

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