Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B144  ·  HD189474  ·  HD189528  ·  HD226868  ·  HD226909  ·  HD227018  ·  LBN 168  ·  LBN 171  ·  Sh2-101
Tulip Nebula Ha with Cygnus X-1 Bow Shock, Aris Pope
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Tulip Nebula Ha with Cygnus X-1 Bow Shock

Tulip Nebula Ha with Cygnus X-1 Bow Shock, Aris Pope
Powered byPixInsight

Tulip Nebula Ha with Cygnus X-1 Bow Shock

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I cropped this photo for a better view of Sh2-101 and the Cygnus X-1 Bow Shock. "A bow shock occurs when the magnetosphere of an astrophysical object interacts with the nearby flowing ambient plasma such as the solar wind", (Wikipedia). As I noted in the previous version, star HD226868 makes a complete orbit of the black hole in that region every 6-8 days. Simply amazing!!

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