Two Nights with M33 (Anthony (Tony) Johnson)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: HD9023 · HD9070 · HD9269 · HD9483 · HD9686 · HD9966 · IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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Two Nights with M33

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Two Nights with M33

Combination of two nights worth of data on M33. I kinda goofed up my ISO settings so I ended up with what looks like to the app as 3 nights. I started my second night at the ISO setting I used from the previous night for my flat darks, which for me is ISO160 for 6secs to match my flats. So that was where my camera was set when I started my second session. In making sure I had the rotation right for the second nights data to match the first, because I took my camera off to shoot M74 through my 12". In doing that I just missed re-adjusting my ISO to 800 which is what I shoot all my subs at. Anyway half way through the night I noticed I had failed to re-adjust my ISO so I figured I didn't want to loose 2.5 hours and heck why not use it to see what could come of adding it to the mix, but I readjusted my ISO to 800 and finished out the night. I just made sure to capture darks to match both sets of lights, and ran it as 3 nights data instead of just 2 in Sirilic for Siril. I'm very pleased with the result. Not getting much color but that could just be a fact that I'm not shooting long exposure subs. S/N ratio is suffering from the short exposures. Or a light pollution issue. Maybe I'll try shooting my next set through my Triband filter and see if I can get some color to add to the mix.

The OSC Club (One Shot Camera)
Deep Sky Northern Hemisphere

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Status	Advanced success
Started	...
Astrometry.net job	8759049
PixInsight job	YBQW9HOABJM8K09NBT1KXVC1TFBQMGEL
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h33m54s.21
RA (top/left)	01h38m09s.84
RA (top/right)	01h28m48s.82
RA (bottom/right)	01h29m42s.56
RA (bottom/left)	01h38m56s.00

Dec (center)	+30°39′11″.3
Dec (top/left)	+31°26′48″.7
Dec (top/right)	+31°10′39″.3
Dec (bottom/right)	+29°50′59″.1
Dec (bottom/left)	+30°06′57″.4

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Two Nights with M33

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