* Image acquisition by
Alpha Zhang.
* Image processing by Ruben Barbosa.
RGB: 90×180″(4h 30′)
Luminance: 16×600″(2h 40′)
The image data is available via subscription on Starbase at
Insight Observatory Starbase.
Sharpless 101 is a H II region emission nebula located in the constellation Cygnus.
It is sometimes also called the Tulip Nebula because it appears to resemble the outline of a tulip when imaged photographically.
Cygnus X-1 (revision B) is a binary star system that contains a black hole. The Cygnus X-1 system looks like a single star in this image (vertical arrow). Gas from the companion star, the blue star HD 226868, is being pulled into the black hole. Before it falls in, the gas becomes incredibly hot, so hot that it emits X-rays (which is how it was discovered). Some of that gas doesn't fall into the black hole but instead is shot out as 'jets' of hot gas. The jet itself isn't visible in this image but you can almost see the bowshock, an umbrella-like shape at the top, that is produced when gas in the jet collides with other gas in the nebula. I suppose, observations in OIII wil show the bowshock.
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