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astrophotography

Tulip Nebula, Sh2-101

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2023-08-18 / Image Details (Click on image to enlarge)

The Tulip Nebula, Sh2-101, is a HII region emission nebula located in the constellation Cygnus. The emission from the Tulip Nebula is powered by ultraviolet radiation of the hot young star HD 227018. This gorgeous nebula is about 8,000 light years away from Earth.

The Tulip Nebula is located about 2 degrees southwest of the Crescent Nebula (NGC 6888). Both objects can be found along an imaginary line drawn from Sadr (Gamma Cygni), the central star of the Northern Cross, to Albireo (Beta Cygni). Together they form the lower part of the Northern Cross. The Tulip Nebula was first discovered in 1959 by astronomer Stewart Sharpless.


"The Northern Cross is a prominent asterism seen in the summer months formed by the brightest stars in the constellation Cygnus: Deneb, Sadr, Albireo, Rukh, and Gienah."

Technical Details

LocationZollikerberg, Switzerland
CameraNikon DSLR D810A
TelescopeTS ONTC 12" f/4 Carbon Newton
OpticsTS 2,5" Wynne Coma Corrector
Focal Length1140mm
MountiOptron CEM120 Center-Balanced Equatorial Mount
AutoguidingPHD2 (Dithering)
FocuserMoonlite
Planetarium SoftwareStellarium
Image Session ControlAPT - Astro Photography Tool v4.01, ASCOM Platform 6
Lights86 x 120s (total 2h52'), ISO-1600, additional Biases, Flats, no Darks
Stacking SoftwarePixinsight 1.8, Drizzle 2x
Image ProcessingPixinsight 1.8

2017-08-17 / Image Details (Click on image to enlarge)


Technical Details

LocationZollikerberg, Switzerland
CameraNikon DSLR D810A
TelescopeSkywatcher Quattro 8CF 200 DS Fibre OTA Newton Carbon
Special LenseSkywatcher Newtonian F4 Coma Corrector
MountSkywatcher AZ-EQ6, EQASCOM, Stellarium
AutoguidingLacerta MGEN2 (Autoguiding, Dithering und Camera Control)
Camera ControlDigicamcontrol (Focus, Camera Control)
Lights67 x 120s (2h14'), ISO-1000, additional Biases, Flats, no Darks
Stacking SoftwarePixinsight 1.8, Bayer Drizzle 2x
Image ProcessingPixinsight 1.8