M45 2 Nov 2016 (Geof Lewis)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 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 · M 45 · Maia · Maia nebula · Merope · Merope nebula · NGC 1432 · NGC 1435 · Pleione · Sterope II · Taygeta · The star 18Tau · And 8 more.

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M45 2 Nov 2016

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M45 2 Nov 2016

More experimentation with my new rig. First time out guiding the 4" TSAPO with lodestar via OAG. Also my first serious attempt at shooting 10 minute sub exposures. Seeing poor as lots of water in the air with heavy dew forming. I made a complete mess of focusing with the ASCOM focus control (also my first time using this), so had to discard over half the subs, but I learnt a few things on the way....!!

Vers A - just a very quick look at the data

Vers B - a more complete processing. Might try a version C to see if I can better control the blown out stars, but this one will do for now.

Vers C - ran a couple of iterations of high pass filter to sharpen, plus a touch of additive Lab blue

Original
B
Final
C

Messier images

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	1307186
PixInsight job	VQIGW0WSD10XOCXRFKT1HLY7KOULT2HP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	03h47m50s.90
RA (top/left)	03h52m49s.15
RA (top/right)	03h43m10s.20
RA (bottom/right)	03h42m54s.22
RA (bottom/left)	03h52m26s.77

Dec (center)	+24°12′28″.7
Dec (top/left)	+24°52′32″.8
Dec (top/right)	+24°59′09″.7
Dec (bottom/right)	+23°31′49″.1
Dec (bottom/left)	+23°25′17″.0

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M45 2 Nov 2016

M45 2 Nov 2016

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M45 2 Nov 2016

M45 2 Nov 2016

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