Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan
Sh2-101 - Tulip Nebula with Cygnus X-1
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Sh2-101 - Tulip Nebula with Cygnus X-1

Acquisition details

Dates:
Oct. 3, 2016
Frames:
Baader Blue 2": 10×300(50′) -20°C bin 1×1
Baader Green 2": 10×300(50′) -20°C bin 1×1
Baader L 2'': 25×300(2h 5′) -20°C bin 1×1
Baader Red 2": 10×300(50′) -20°C bin 1×1
Integration:
4h 35′
Flats:
15
Bias:
100
Avg. Moon age:
2.26 days
Avg. Moon phase:
5.67%

Basic astrometry details

Astrometry.net job: 1266092

RA center: 19h59m47s.0

DEC center: +35°1500

Pixel scale: 1.108 arcsec/pixel

Orientation: 175.836 degrees

Field radius: 0.622 degrees

Resolution: 620x472

File size: 296.6 KB

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Description

Edit2: Here's a video tour from Earth to Cygnus X-1: Youtube

Edit: I've marked the location of Cygnus X-1. It is a strong X-ray source identified in 1962 as a binary star system, with the black hole orbiting the star HDE 226868.

I think this my first Sharpless nebula. It was fairly easy to process, although it would've benefited from longer exposures and ofc Ha.

wiki: Sharpless 101 (Sh2-101) is a H II region[1] 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.

Sh2-101, 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 the brighter of the two stars (lower star) in close vertical proximity just to the right of Sh2-101 in the image presented here.[2]

Comments

Revisions

  • Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan
    Original
  • Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan
    B
  • Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan
    C
  • Final
    Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan
    D

Sky plot

Sky plot

Histogram

Sh2-101 - Tulip Nebula with Cygnus X-1, 



    
        

            Kharan