I decided
to shelf Andromeda for now and try the Whirlpool Galaxy instead. At first I wasn’t sure it was on the right
spot, which it really needed to be because I could barely see it through the
telescope, but sure enough, it showed up in a 30 second exposure! Super exciting to see it. I played around
with the telescope settings a bit, and decided to try much higher anti-backlash
values. At normal speeds, this causes a
massive jump when I move the telescope, but at tracking speed, I thought this
wouldn’t happen. I think I got more of
the stable pictures, but it wasn’t by much.
I took about 110 before the telescope got too dewy, which was early that
night, only about 11:30 PM as opposed to the usual 1:30 AM or so. I can’t remember how many DSS took, but not
enough apparently, because I couldn’t even see it in the stacked image, even
though I could just barely see it in the individual images. This is because the moon was pretty full,
bright, and high in the southern sky (which is what drove me to do the Whirlpool
Galaxy in the first place, since it was one of the few objects in the northern
sky). Better luck next time. I’ll just have to add the Moon as another
discriminator against photo trips. It’s
fine for visual observing trips with my friends, since it looks so fantastic in
the telescope view.
Single frame of M51 Whirlpool Galaxy taken on a moonlit night.
Tracking errors cause the stars to streak.
Nikon D3100 on my C8, 30s, ISO-12800
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