⭐ The Tulip Nebula in Hydrogen Alpha

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SH2-101 is an emission nebula in the Cygnus cloud region. It is in direct line with the Milky Way and therefore lies in an abundant starfield. I first imaged the Tulip Nebula in July 2021. In the first image, the bright red star in the lower right is Cygnus X-1, part of a binary star system that includes black hole. You can't see it, but its signature is visible in X-ray emissions. I imaged it three more times through June 2022 and combined the data for the second image. Last night, I started a new data set. This time I got a little closer.
⭐ This photograph is part of our signature series.
🧭 Where is it? View this image via World Wide Telescope.
Telescope:   Celestron EdgeHD 9.25
Length:   1640mm
Aperture:   235mm
F-stop:   f/6.230
Sessions:   1
Captured:   2023-06-28 to 2023-06-28
Lights:   36
Exposure:   300
Total exposure:   3 h
Ra:   20h 0m 0.9s
Dec:   +35° 20' 31.233
Size:   27.023 x 32.437 arcmin
Radius:   0.352 deg
Scale:   0.384 arcsec/pixel