NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC (John Jennings)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4277 · IC 4278 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

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NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

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NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

This is always a difficult image for me because it's so popular. There are so many beautiful renditions of M51. Here's my take with the AP155.

Post from AP forum:

Imaged this back in April. It was one of my first targets around 22 years ago when I trained my C14/AP1200GTO and a starlight express camera on it at the Texas Star Party. I was just getting back into the hobby after a 10 year break due to running a business. My previous attempts at imaging was using hypered tech pan film with a 35mm camera riding piggyback. My first decent Comet Images were in 1974. What a mess. That night when I saw M51 pop up on my laptop screen with a single sub, I was hooked on imaging for life.

It's hard to fathom that image processing and camera technology has come so far to allow the little AP155 to produce images like this today in only 2.33 hours. Technology has caught up with the stellar quality of these fine Astro-Physics refractors. "

HISTORY   1 Stacking method SIGMA CLIP AVERAGE
HISTORY   2 De-mosaic bayer pattern used RGGB
HISTORY   3 Colour conversion: AstroSimple interpolation.
EXPTIME    = 8400 / Total luminance exposure time in seconds.
SET-TEMP   = -5 / Set temperature used for luminance.
LUM_EXP    = 300 / Average luminance exposure time.
LUM_CNT    = 28 / Luminance images combined.
LUM_DARK   = 30 / Darks used for luminance.
LUM_FLAT   = 40 / Flats used for luminance.
LUM_BIAS   = 0 / Flat-darks used for luminance.

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Final
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Title: BlurXTerminator

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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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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	7544517
PixInsight job	DQ4GTW020EDAKDP8NNC22F3ZY0PHPZO0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h29m52s.637
RA (top/left)	13h29m06s.826
RA (top/right)	13h29m06s.410
RA (bottom/right)	13h30m38s.156
RA (bottom/left)	13h30m39s.228

Dec (center)	+47°11′42″.62
Dec (top/left)	+47°23′26″.90
Dec (top/right)	+47°00′02″.39
Dec (bottom/right)	+46°59′57″.17
Dec (bottom/left)	+47°23′21″.54

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NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

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NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

NGC5194, M51 GX Sbc (11.2" 8.1M) "Whirlpool Galaxy" - 2.33 hours OSC

Revision title: BlurXTerminator

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Acquisition details

Description

Comments

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C

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