Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Cygnus X1 bow shock and Tulip Nebula., 



    
        

            Olly Penrice
Cygnus X1 bow shock and Tulip Nebula.
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Cygnus X1 bow shock and Tulip Nebula.

Technical card


Basic astrometry details

Astrometry.net job: 3701509

RA center: 19h 59' 11"

DEC center: +35° 21' 43"

Pixel scale: 1.786 arcsec/pixel

Orientation: 23.719 degrees

Field radius: 0.437 degrees


Resolution: 1379x1100

Data source: Backyard

Description

Cyg X-1 provided the first observational evidence of a black hole. One of its jets appears to have created the bubble-like structure which shows best in OIII. This target was suggested by Paul Kummer, who would have been with us in July but for the pandemic, and taken with a dual TEC140/Mesu 200/Atik 460/Moravian setup co-owned by myself, Tom O'Donoghue and Steve and Elisabeth Milne.

OIII 25x15mn, Ha 20x15, L 11x15, R and G 6 x 10, B 7x10. (17 hours and 10 minutes total.)

On the bonus side the sky was outstandingly transparent but a heat wave made for very poor seeing and my OIII filmter in the Atik is terrible! The X-1 generated loop is heavily emphasized in the processing but that was the object of the excercise.

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Cygnus X1 bow shock and Tulip Nebula., 



    
        

            Olly Penrice