SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor) (Frank Breslawski)

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

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SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

Link: http://sternwarte-wasserberg.de/

Powered byPixInsight

SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

Link: http://sternwarte-wasserberg.de/

Somehow it is crazy what we can make visible with our amateur telescopes today. The Tulip Nebula, embedded in the numerous H-Alpha filaments, is often captured in images.

But for us (visually right next to it) the Bow Shockwave from Cyg X-1 is also visible. It is the first black hole that could be detected at all. :-)

From Wikipedia:

Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources seen from Earth. It remains among the most studied astronomical objects in its class. The compact object is now estimated to have a mass about 14.8 times the mass of the Sun and has been shown to be too small to be any known kind of normal star, or other likely object besides a black hole. If so, the radius of its event horizon has 300 km "as upper bound to the linear dimension of the source region" of occasional X-ray bursts lasting only for about 1 ms.

Narrowband imaging
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Fast Newtonians

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Status	Advanced success
Started	...
Astrometry.net job	4039610
PixInsight job	4A78ALSV9OXVENIZXK15KS76EQKDEUD8
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h00m19s.33
RA (top/left)	20h03m10s.19
RA (top/right)	19h57m30s.31
RA (bottom/right)	19h57m31s.25
RA (bottom/left)	20h03m07s.18

Dec (center)	+35°26′02″.2
Dec (top/left)	+35°53′12″.0
Dec (top/right)	+35°53′21″.9
Dec (bottom/right)	+34°58′43″.7
Dec (bottom/left)	+34°58′24″.9

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SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

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SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

SH2-101 - The Tulip Nebula and Cygnus X-1 Bow Shockwave (Bicolor)

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