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About Astrokev

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    Brown Dwarf

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  • Location
    Bedfordshire, UK
  1. Thanks. Yeah I'm keen to have a proper go at a longer animation sequence, but haven't had a decent night since I took this one!
  2. Yes, I have WinJupos, but have not looked at it yet! I hear it's a great program though
  3. This short animation is made up of 5 images taken on 22nd Sep at approx. 15 minute intervals, spanning 1 hour. Equipment - Celestron C11 working at f/20, and ZWO ASI174MM. It would be interesting and fun to try and go for a longer duration if the clouds and seeing play nicely
  4. Thanks, will take a look
  5. No, this was just a single exposure with a mono camera without filtration.
  6. Thanks . This is lifted from the BAA website I think. A really useful tool, but many finer features are not labelled. Still really good though
  7. Thanks I'll take a look . EDIT - ah yes, this is the BAA site map. I use this already, and it's excellent at showing the features at any particular time. I do think that the labelling is rather poor though. Not always clear which bit the over-laid label is referring to, and there are many feature names that some people refer to in their posts that are not labelled on this map. Still really useful though
  8. Thanks. Learning curve - tell me about it! I still haven't cracked how to get it in sharp focus. I tend to take loads of videos, refocussing each time, process the lot and choose the best 2 or 3. Nights of good seeing are obviously easier. This wasn't one of those!
  9. Just curious - can anyone suggest or recommend a decent online map of Mars? I've searched but don't seem able to find anything half decent. Thanks in hope and anticipation! Kev
  10. Mars imaged early morning on the 20th Sep. Fair bit of wind which made things a bit jittery, and fast moving high cloud spoiled the seeing as the morning progressed. Taken with my C11 at f/20 and ASI174MM.
  11. My simplistic understanding is that unity gain is the value which gives a 1:1 conversion of electron count to ADU. My newbie question is - is this the value that theoretically also gives the lowest noise in the image? For imaging of bright planets, where there is sometimes enough light to be able to use a gain setting lower than unity (depending on f ratio being used!), would this give lower noise? Therefore, in principle, does setting gain as low as possible give best control of noise? A few nights ago I started an experiment with my ASI174MM on Mars to put this to the test, but haven't completed this yet, and with the other variables involved (mainly fluctuations in seeing) I'm not sure if this will give a clear answer. Any thoughts on this gratefully received.
  12. Thanks. I did process it quite a bit, but I try and avoid creating the bright limb that often appears due too sharpening
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