Bode 's Galaxy M81 - V3.1 Wide Field (Arnaud Peel)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · M 81 · NGC 3031

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Bode 's Galaxy M81 - V3.1 Wide Field

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Bode 's Galaxy M81 - V3.1 Wide Field

Wide field Version:

Background re_processed and some complicated stars also reworked

I prefer to frame it as a wide field, slightly rotated, like it better, tell me what you think ?

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NEW version completly different than the previous ones ...

Total exposure 15.4 Hours

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Finally , one of my favorite galaxies, M81 is a real challenge, so famous and not easy to process . Its core is very bright, and delicate dust lanes seem to evaporate around the nucleus. Some nice HII nodules can be also be enhanced with an Ha layer.

I threw away half of my lum data , and waited for perfect nights to get nice FWHM Luminance subs.

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way

4 nights : 14,15, 17/18, 28, 30/31 march

128 Light subs @180s gain zero and -20°C and

72 Halpha subs @300s gain 139 and -20°C and

20 Blue subs @180s gain zero and -20°C

20 Green subs @180s gain zero and -20°C

20 Red subs @180s gain zero and -20°C

Final
Original
B

B

Description: Almost FF , without rotation

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	3467410
PixInsight job	ZSJLD5JMLBPVW01IK6BOMIO1Z8ICT5EE
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h55m36s.300
RA (top/left)	09h58m45s.431
RA (top/right)	09h57m55s.797
RA (bottom/right)	09h52m21s.110
RA (bottom/left)	09h53m21s.511

Dec (center)	+69°03′36″.38
Dec (top/left)	+68°42′46″.34
Dec (top/right)	+69°27′30″.90
Dec (bottom/right)	+69°24′13″.41
Dec (bottom/left)	+68°39′35″.58

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Bode 's Galaxy M81 - V3.1 Wide Field

Bode 's Galaxy M81 - V3.1 Wide Field

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Bode 's Galaxy M81 - V3.1 Wide Field

Bode 's Galaxy M81 - V3.1 Wide Field

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