Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  Bubble nebula  ·  NGC 7635  ·  NGC7635  ·  Sh2-162
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Social Bubble Nebula at 1280mm, 


            Bob Stevenson
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Social Bubble Nebula at 1280mm

Imaging telescopes or lenses: Celestron 8" SCT

Imaging cameras: Atik 460EX

Mounts: iOptron CEM 60

Guiding telescopes or lenses: Orion Magnificent Mini 50mm Guide Scope

Guiding cameras: ZWO ASI120MM Mini

Focal reducers: Celestron Focal Reducer/Flattener x0.63

Software: Photoshop  ·  PixInsight  ·  Seqence Generator Pro  ·  PHD 2

Filters: Optolong OIII 6.5nm 2"  ·  Optolong H-alpha 7nm 2"  ·  Optolong SII 6.5nm 2"

Accessory: Robert Brown myFocuserPro2

Dates:Aug. 23, 2020

Frames: 96x600"

Integration: 16.0 hours

Avg. Moon age: 4.94 days

Avg. Moon phase: 25.17%

Astrometry.net job: 3843886

RA center: 23h 20' 42"

DEC center: +61° 10' 53"

Pixel scale: 0.363 arcsec/pixel

Orientation: 79.876 degrees

Field radius: 0.339 degrees

Resolution: 5250x4198

Locations: Backyard, Bortle Class 8, Burlington, Ontario, Canada

Data source: Backyard


I used my Super C8 from 1983 for this one, teamed with the f6.3 reducer and my home made focuser.

Is it just me, or does the bubble nebula look like a jack-o-lantern or Lord Voldemort?

This SHO image is composed of the following subexposures:

Ha 38 x 600sec
OIII 31 x 600sec
SII 27 x 600sec

Hope you like it!



  • Social Bubble Nebula at 1280mm, 


            Bob Stevenson
  • Final
    Social Bubble Nebula at 1280mm, 


            Bob Stevenson


Description: With the recent purchase of an ASI1600, the first thing that struck me was the intense star colour from this camera compared to my Atik 460. So I took a few 30 second exposures of the stars in this region and added RGB stars to my narrow band image. This also gave me back the star actually responsible for the bubble, which did not appear in my first version.

Uploaded: ...

Sky plot

Sky plot


Social Bubble Nebula at 1280mm, 


            Bob Stevenson