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Contains:  M 52, NGC 7654, Bubble nebula, NGC 7635
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NGC 7635 Bubble Nebula & Open Cluster Messier 52, 





    
        

            Gebhard Maurer
NGC 7635 Bubble Nebula & Open Cluster Messier 52

NGC 7635 Bubble Nebula & Open Cluster Messier 52

Technical card

Resolution: 5054x3308

Dates:Aug. 31, 2019

Frames:Optolong L-Pro 2": 40x420" ISO800

Integration: 4.7 hours

Darks: ~32

Flats: ~43

Bias: ~29

Avg. Moon age: 1.26 days

Avg. Moon phase: 1.77%

Mean FWHM: 4.00

Temperature: 18.00

Astrometry.net job: 2900799

RA center: 350.572 degrees

DEC center: 61.304 degrees

Pixel scale: 0.884 arcsec/pixel

Orientation: 198.051 degrees

Field radius: 0.742 degrees

Locations: Backyard, Raglitz, Niederösterreich, Austria

Data source: Traveller

Description

NGC 7635, also known as the Bubble Nebula, Sharpless 162 or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel.

Comments

Author

GeBs
Gebhard Maurer
License: None (All rights reserved)
450
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Revisions

  • NGC 7635 Bubble Nebula & Open Cluster Messier 52, 





    
        

            Gebhard Maurer
    Original
  • Final
    NGC 7635 Bubble Nebula & Open Cluster Messier 52, 





    
        

            Gebhard Maurer
    B

B

With smaller stars.

Sky plot

Sky plot

Histogram

NGC 7635 Bubble Nebula & Open Cluster Messier 52, 





    
        

            Gebhard Maurer