Messier 51 - the Whirlpool galaxy - revisited (Simon)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD117815 · HD118019 · IC 4263 · IC 4277 · IC 4278 · M 51 · NGC 5169 · NGC 5173 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool galaxy

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Messier 51 - the Whirlpool galaxy - revisited

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Messier 51 - the Whirlpool galaxy - revisited

I decided to try and take this object again, using my modified DSLR and 8" reflector. I managed to get 46 subs at 5 minutes long each. There was some improvement in detail, compared to the previous image which had less subs and length of exposure. Initially I tried processing the 46, but found that I was not able to draw out the additional detail very easily for some reason. I may try to process this again.

So what I did was combine the two nights together and thus had 80 subs in total, which seemed to show a little more detail, although not as much as I hoped for [compared to the 46 subs version] - oddly enough! So, what we have here are 34 subs at 4 minutes long each, and 46 subs at 5 minutes long each - combined - thus the 80. Just over 6 hours integration time...

I am pleased to have been able to pick up the 2 tiny unknown galaxies around the main object - I have never done this before - and also some of the almost undiscernible faint matter just above the main galaxy itself. I did my best, with my skies!

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Status	Advanced success
Started	...
Astrometry.net job	2029097
PixInsight job	HLRNKLCEU23NRWFGXKXNRRV38GPVI3NY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h30m02s.22
RA (top/left)	13h32m16s.95
RA (top/right)	13h33m32s.43
RA (bottom/right)	13h27m43s.48
RA (bottom/left)	13h26m36s.55

Dec (center)	+47°11′22″.6
Dec (top/left)	+46°24′43″.8
Dec (top/right)	+47°49′30″.8
Dec (bottom/right)	+47°57′54″.10
Dec (bottom/left)	+46°33′01″.6

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Messier 51 - the Whirlpool galaxy - revisited

Messier 51 - the Whirlpool galaxy - revisited

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Messier 51 - the Whirlpool galaxy - revisited

Messier 51 - the Whirlpool galaxy - revisited

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