Messier 45 (OSC) (Linda)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 11 Tau · 16 Tau · 17 Tau · 18 Tau · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 25 eta Tau · 26 Tau · 27 Tau · 28 Tau · Alcyone · Asterope · Atlas · Celaeno · Electra · IC 349 · IC 353 · M 45 · Maia · Maia nebula · Merope · Merope nebula · NGC 1432 · NGC 1435 · Pleiades · Pleione · And 11 more.

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Messier 45 (OSC)

Link: https://lindasastronomyadventures.space/2018/03/23/the-pleiades/

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Messier 45 (OSC)

Link: https://lindasastronomyadventures.space/2018/03/23/the-pleiades/

This was my first attempt at 200mm focal length. This was shot from light polluted northern Virginia near Dulles Airport. I could only manage one hour of frames before the camera batteries died (happily the 12V camera adapter is here now). Of that hour, only 50 minutes could be used. The neighbors house began "rising" through the frame which might make an entertaining animation but spoiled the shot. Given the lateness in the season for M45 I probably won't be able to add any time to it this until the fall.

The lens was at 200mm, f/5.6. The ISO was 800.

This was a bit harder to process than my previous very wide field Orion. The temperature was warmer so the image was noisier. It was shot from even more light polluted skies and would have benefitted from much longer integration time but, alas, this was probably my one and only attempt to get what data I could. Given this was more of an experiment in making everything work together I got what I wanted out of it.

I did manage to get flats this time and that did help.

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Status	Advanced success
Started	...
Astrometry.net job	1980876
PixInsight job	1GWVN21DP5R5IV2IJLNL6QPLGUQXBYAP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	03h46m06s.49
RA (top/left)	03h54m40s.56
RA (top/right)	03h53m23s.80
RA (bottom/right)	03h37m12s.86
RA (bottom/left)	03h39m05s.48

Dec (center)	+23°58′54″.7
Dec (top/left)	+21°41′03″.7
Dec (top/right)	+26°31′35″.9
Dec (bottom/right)	+26°15′09″.8
Dec (bottom/left)	+21°24′56″.1

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Messier 45 (OSC)

Messier 45 (OSC)

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