Sh2 115 and Sh2 116 H-Alpha RGB (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: PK085+04.1 · Sh2-115 · Sh2-116

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Sh2 115 and Sh2 116 H-Alpha RGB

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Sh2 115 and Sh2 116 H-Alpha RGB

For Sh2 115:

This HII region lies in the same direction as the radio source W71 and is ionised by the O6 Ib supergiant LS III +46 12 which is part of the star cluster Berkeley 90. The cloud surrounding Berkeley 90 (part of which is visible as Sh 2-115) contains 4400 solar masses of gas and dust and is about 30 pc long.

For Sh2 116 (little Red spot to the right):

Often described as the planetary nebula Abell 71, but a 1991 study by Paris Pismis and colleagues concluded that this object is actually an HII region.

Curiously, Pismis' study appears to have been overlooked by other professional astronomers as Abell 71 continues to appear in lists of planetary nebula.

Above from:

http://galaxymap.org/cat/view/sharpless/115

Much more information on web site.

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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	1353729
PixInsight job	GTMX5JU921FBC177K4QHT68J557GLR8C
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h34m22s.76
RA (top/left)	20h38m21s.79
RA (top/right)	20h38m50s.15
RA (bottom/right)	20h30m15s.11
RA (bottom/left)	20h30m04s.42

Dec (center)	+46°50′04″.8
Dec (top/left)	+45°51′28″.9
Dec (top/right)	+47°45′31″.7
Dec (bottom/right)	+47°48′07″.4
Dec (bottom/left)	+45°54′01″.5

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Sh2 115 and Sh2 116 H-Alpha RGB

Sh2 115 and Sh2 116 H-Alpha RGB

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Sh2 115 and Sh2 116 H-Alpha RGB

Sh2 115 and Sh2 116 H-Alpha RGB

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