Tulip Nebula - Soft HOO

12 Light 240 Seconds

40 Dark

40 Flat

40 DarkFlat

 

Used Camera Settings:

1600 Gain

20 Offsett

-10 °C

 

Used Equipment:

OTA: Skywatcher 200 Quattro

Equatorial Mount: ProxiSky RagDoll 20 Pro

AutoFocuser: ZWO EAF

Camera: QHY294C

Philters: Oprolong L-eXtreme

Guiding Scope: Artesky Superguide 60mm

Guiding Camera: ZWO ASI 120 MM Mini + UV/IR Cut Filter

 

Sharpless 101 (Sh 2-101) 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. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years (5.7×1016 km; 3.5×1016 mi) from Earth.

 

Sh 2-101, at least in the field seen from Earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. Cygnus X-1 is located about 15′ west of Sh 2-101. The companion star of Cygnus X-1 is a spectral class O9.7 Iab supergiant with a mass of 21 solar masses and 20 times the radius of the Sun. The period of the binary system is 5.8 days and the pair is separated by 0.2 astronomical units. The black hole has a mass of 15 solar masses and a Schwarzschild radius of 45 km. A bowshock is created by a jet of energetic particles from the black hole as they interact with the interstellar medium.

Done