M97 The Owl Nebula (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 97 · NGC 3587 · Owl Nebula · PK148+57.1

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M97 The Owl Nebula

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M97 The Owl Nebula

M97 - The Owl Nebula

M97, also known as the Owl Nebula, is a famous planetary nebula located in the constellation of Usra Major. It was discovered by Pierre Mechain on February 16, 1781 and is one of only four planetary nebulae listed in the Messier Catalogue.  Although not particularly bright at magnitude +9.9, it's a superb object and regarded as one of the most complex examples of its type. The name Owl Nebula was first coined in 1848 by William Parsons the 3rd Earl of Rosse, who noticed owl-like "eyes".
M97 has an apparent size of 3.4 x 3.3 arc minutes. At a distance of 2,600 light-years this equates to an actual diameter of 3 light-years. It's a fantastic deep sky object that's estimated to be 8,000 years old. Although not bright, it's a worthy object on any observing list.

Information Credits: Home Free Star Charts

Telescope: Explorer Scientific 127mm CF APO Refractor f/7.5 (952mm Focal Length)
Mount IOptron CEM40
Camera ZWO1600MM
ZWO EFW

60 X 60 Second Exposures W/ZWO Green Filter   Gain 100 Offset    21
40 X 180 Second Exposures W/ZWO Ha Filter (7nm)   Gain 139 Offset    21
40 X 180 Second Exposures W/Celestron OIII Filter (8.5nm)    Gain 139 Offset    21
20 Dark Frames
Total Integration Time:  5 Hours   0 Minutes  (HaGO)

Acquisition with SharpCap
Stacked with Deep Sky Stacker
Guiding PHD2

Processed with Astra Image

Photo taken from Seven Lakes, NC Bortle 4.5

Original
Final
B

B

Description: I reduced Violet and Magenta and increased Cyan and Green to give a more natural look that an OSC would achieve.
Try as I may I could not get that teal greenish blue color, but it is closer to the real thing.

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Status	Advanced success
Started	...
Astrometry.net job	5635356
PixInsight job	75H7DC1JUJ6K2DS0KMVYZO3SNDD3L68H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h14m43s.233
RA (top/left)	11h15m42s.998
RA (top/right)	11h15m52s.106
RA (bottom/right)	11h13m42s.811
RA (bottom/left)	11h13m34s.810

Dec (center)	+55°00′55″.30
Dec (top/left)	+54°48′28″.66
Dec (top/right)	+55°12′21″.83
Dec (bottom/right)	+55°13′19″.22
Dec (bottom/left)	+54°49′25″.71

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M97 The Owl Nebula

M97 The Owl Nebula

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M97 The Owl Nebula

M97 The Owl Nebula

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