Sh2-101 and Cygnus X-1 (aka Tulip Nebula) (Stefan)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B144 · Sh2-101

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Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

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Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

This is a H-II region located in Cygnus. Its vicinity to more popular targets like the Crescent (NGC 6888) and other gems in this area may be the reason that this target isn't images that often. I placed the Tulip off center to include that very faint arc of H-alpha to the right (much better seen in the Ha-only-image available via the link below). This is a shock front emerging from Cygnus X-1, the most famous X-ray source in the skies and the first black hole to be confirmed ever. This alone would be worth much more additional imaging time but whether wasn't cooperative this summer.

I tried to bring as much of the starless Halpha into the colored image as possible but I have to admit that the extreme dynamic of this region can only be gathered by the starless image.

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Description: H-alpha starless full res (0.39 arcsec/pixel)

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Status	Advanced success
Started	...
Astrometry.net job	4729167
PixInsight job	QN6SFJOYHQ5PTBTIZ6Z5HSGBWXJO5T8G
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h59m23s.968
RA (top/left)	20h01m05s.535
RA (top/right)	19h57m47s.144
RA (bottom/right)	19h57m42s.935
RA (bottom/left)	20h01m00s.325

Dec (center)	+35°19′39″.30
Dec (top/left)	+35°32′10″.46
Dec (top/right)	+35°33′37″.52
Dec (bottom/right)	+35°07′03″.33
Dec (bottom/left)	+35°05′37″.65

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Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

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Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

Sh2-101 and Cygnus X-1 (aka Tulip Nebula)

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