Andromeda 2023 version (John Favalessa)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · PGC 2149841 · PGC 2150958 · PGC 2150982 · PGC 2151035 · PGC 2151989 · PGC 2152121 · PGC 2152216 · PGC 2152690 · PGC 2153074 · PGC 2153367 · PGC 2153530 · PGC 2153695 · PGC 2153981 · PGC 2154285 · PGC 2154318 · PGC 2155019 · PGC 2155458 · PGC 2155823 · PGC 2156322 · PGC 2156511 · PGC 2157179 · PGC 2157180 · And 98 more.

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Andromeda 2023 version

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Andromeda 2023 version

As promised, (as done with testing), is Andromeda in all its glory. I got two good nights at Kennedy Meadows Bortle 3 to 4, SQM 21.25 to 21.80. I went for a natural color for this year's attempt. (I plan to capture this queen of the skies every year). I used a full frame OSC camera, pure RGB, integrated with APP, GraXpert to remove gradients (not much), color calibrated with SPCC, with a tad of Ha blended for the nebulosity. Ha was from the Antlia Dual NB then APP to extract Ha. If you want Ha or Oiii from a OSC camera that is the way to go.

I actually had three clear nights but the first night was too windy, the second night had much dew even though high desert and I didn't have my dew heater up high enough, was asleep and lost 4 great seeing hours due to dew on my lens. Third night was supposed to be cloudy but was clear until 4:30am.

What my testing at backyard B7 was all about - OSC or mono? I actually liked the OSC with the Antlia TriRGB results from B7 and thought to try OSC with IRCUT from dark skies. I tried various setups to frame this huge object but wanted the most focal length. My WO 102GT with reducer with the ASI6200MC did the best, perfect pixel scale, but huge file size at 1gig. The stars in the extreme corners are not great, this is due to the fact I'm using 2" filters instead of the more expensive 50mm ones. This image was saved at 90% jpeg quality otherwise would have been 85MBs!

till next year...again! -john

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Status	Advanced success
Started	...
Astrometry.net job	8593747
PixInsight job	MH7FXBYMDZBR43V5RCOG357T4PXC42DX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m39s.18
RA (top/left)	00h45m41s.00
RA (top/right)	00h51m37s.37
RA (bottom/right)	00h39m27s.58
RA (bottom/left)	00h34m05s.33

Dec (center)	+41°17′43″.3
Dec (top/left)	+39°14′36″.1
Dec (top/right)	+42°37′54″.8
Dec (bottom/right)	+43°20′45″.7
Dec (bottom/left)	+39°55′16″.3

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