NGC281 - Pacman Nebula (Phil Hoppes)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD5005 · HD5032 · IC 1590 · LBN 615 · LBN 616 · NGC 281 · Sh2-184

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NGC281 - Pacman Nebula

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NGC281 - Pacman Nebula

This is my current take of the Pacman Nebula with my Vixen telescope. I photographed this about a year ago with my Lunt LS80MT. I think this version is a bit better. Both experience and better optics for deep space are probably part of the reason. Had a few more subs I had to delete due to guide issues. I need to spend a few nights here doing some experiments with Phd2 and my NYX-101 to see if I can optimize my guiding a bit more.

I'm trying to understand why people use dithering. Both my Redcat51 on my AM5 and now my Vixen ED103S on my NYX-101 image quite well. That being said, I've yet to image anything where I had pixel perfect guiding. I just don't see it and I am getting consistent sub arc second RMS guiding on both setups. My subs ALWAYS slide a few pixels around sub to sub. This is basically all that dithering does is slide the image across different pixels for different subs. Perhaps with my new absolute encoders on my AP1600 setup for my C14 I will get pixel perfect guiding, but on my other setups I don't so I just don't see the reason for using it. Since I post with PixInsight I've never had any issues with PI trying to register my sub stack. I always lose just a tad around my borders because I don't have pixel perfect guiding but my images come out nice. With the RCAstro plugins NXT and BXT virtually all of the small sub issues get taken care of with great success.

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Status	Advanced success
Started	...
Astrometry.net job	8718019
PixInsight job	VJQPBIE7BCH1AC8M0TQJNVB37YKDQVMH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h52m15s.21
RA (top/left)	00h54m55s.20
RA (top/right)	00h55m53s.19
RA (bottom/right)	00h49m28s.80
RA (bottom/left)	00h48m44s.96

Dec (center)	+56°35′01″.8
Dec (top/left)	+55°50′16″.2
Dec (top/right)	+57°15′13″.3
Dec (bottom/right)	+57°19′33″.5
Dec (bottom/left)	+55°54′28″.4

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NGC281 - Pacman Nebula

NGC281 - Pacman Nebula

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NGC281 - Pacman Nebula

NGC281 - Pacman Nebula

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