Quote:
Originally Posted by Shiraz
thanks M&T - Stevec35 recently posted a really nice image.
fwiw, the maths is in this spreadsheet: http://www.iceinspace.com.au/forum/s...d.php?t=151000
my f4 system is within 5% of fully sky limited at 60 seconds since the read noise of the camera is below 2e. I have been using 2 minute subs for convenience, but lose a bit of dynamic range in doing so. |
Wow! The world is really changing, and Trish and I are still riding on the wings of a pterodactyl. I suppose that since we
can do 1 hour narrowband subs, the fact that we
need to is less onerous.
You sure have plenty of subs for doing statistical outlier rejection and/or drizzling. The latter is out of the question for us with perhaps 6 subs a night. (Tonight we're having a bash at a patch of the Vela SNR, and will get 7 frames if all goes well and the pterodactyl doesn't crash).