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Contains:  Bubble nebula, M 52, NGC 7635, NGC 7654, The star 4Cas
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M52 and NGC7635, shot with Samyang 135mm, 


            Björn Hoffmann
M52 and NGC7635, shot with Samyang 135mm
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M52 and NGC7635, shot with Samyang 135mm

Technical card

Dates:Sept. 21, 2017

Frames: 80x30" ISO800

Integration: 0.7 hours

Darks: ~30

Flats: ~30

Bias: ~40

Avg. Moon age: 1.29 days

Avg. Moon phase: 1.86%

Bortle Dark-Sky Scale: 4.00

Mean FWHM: 3.70

Temperature: 8.00

Basic astrometry details job: 1745597

RA center: 23h 23' 56"

DEC center: +61° 37' 1"

Pixel scale: 3.785 arcsec/pixel

Orientation: 86.971 degrees

Field radius: 1.302 degrees

Resolution: 2000x1461


From my series 'tiny deep-sky objects shot with the Samyang 135mm f/2' comes the newest entry M52 and NGC7635, better known as the Bubble Nebula! These two objects were part of my Cepheus mosaic. I performed a separate stack, using 2x drizzle, to prepare a view on those two. I never thought I would be able to resolve the bubble, but it worked! :)



Björn Hoffmann
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


M52 and NGC7635, shot with Samyang 135mm, 


            Björn Hoffmann