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Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic, 





    
        

            Steve Milne
Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic

Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic

Technical card

Resolution: 4253x3309

Dates:July 7, 2019

Frames:
Astrodon Ha 3nm: 68x1200" bin 1x1
Astrodon OIII 3nm: 62x1200" bin 1x1
Astrodon SII 3nm: 48x1200" bin 1x1

Integration: 59.3 hours

Avg. Moon age: 5.28 days

Avg. Moon phase: 28.32%

Astrometry.net job: 2802210

RA center: 299.752 degrees

DEC center: 35.423 degrees

Pixel scale: 0.743 arcsec/pixel

Orientation: 359.748 degrees

Field radius: 0.556 degrees

Locations: Home Observatory, Doncaster, Nottinghamshire, United Kingdom; E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Unknown

Description

The Tulip Nebula (Sharpless 2-101) is an emission nebula around 8,000 light years distant in the constellation of Cygnus. The nebula is ionized by young, energetic stars which include HDE 227018 – the bright star close to the small blue ‘arc’ of gas just below the centre of the main nebula.

Cygnus X-1 is a high-mass X-Ray binary consisting of a black hole accreting mass from a supergiant star HD 226868. North of Cygnus X-1 there is a shockwave of hot gas expanding at around 100-360 km/s [ (Sell et al, 'Shell-Shocked: The Interstellar Medium Near Cygnus X-1', Monthly Notices of the Royal Astronomical Society; 2014). This shockwave is the faint blue arc visible in the lower right quadrant of this image.

This is a two panel SHO mosaic. Data were collected in two sessions and from two locations. The first tranche of data was collected between 14 July and 18 September 2018 from my home observatory in the UK. More data were captured between 13 May and 7 July 2019 from an imaging rig in Spain that is privately-owned and remotely-operated by Barry Wilson and me. The same telescope, camera and filters were used throughout.

Technical details:

Telescope: TEC 140ED
Camera: QSI 690 WSG
Filters: Astrodon
Mounts: Mesu 200 & 10 Micron GM 1000HPS

Ha: 68 x 1200s
OIII: 62 x 1200s
SII: 48 x 1200s

A total of 59 hours and 20 minutes exposure.

Data Capture: Steve Milne
Image Processing: Steve Milne

Comments

Author

gnomus
Steve Milne
License: None (All rights reserved)
2227
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Revisions

  • Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic, 





    
        

            Steve Milne
    Original
  • Final
    Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic, 





    
        

            Steve Milne
    B

B

When I saw V1 uploaded, I thought it could do with a bit more oomph.

Sky plot

Sky plot

Histogram

Tulip Nebula and Cygnus X-1 Shockwave - two panel mosaic, 





    
        

            Steve Milne