Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  M 52  ·  NGC 7635  ·  NGC 7654
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Bubble nebula and M52, 



    
        

            Salvatore Iovene
Bubble nebula and M52
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Bubble nebula and M52

Imaging Telescopes Or Lenses
Sky-Watcher Esprit 80ED
Imaging Cameras
Moravian Instruments G2-1600 MK I
Mounts
Sky-Watcher HEQ5
Filters
Astronomik H-alpha CCD 6nm (Round 2")
Accessories
TS-Optics 0.8x Reducer / Field Corrector for TS Refractors with 70-72 mm Aperture
Software
Pleiades Astrophoto PixInsight
Guiding Telescopes Or Lenses
Sky-Watcher 70/500 Guidescope

Acquisition details

Dates:
Oct. 5, 2011
Frames:
Integration:
3h
Avg. Moon age:
8.72 days
Avg. Moon phase:
64.07%
Bortle Dark-Sky Scale:
6.00

RA center: 23h22m31s.9

DEC center: +61°2443

Pixel scale: 2.373 arcsec/pixel

Orientation: -95.118 degrees

Field radius: 0.910 degrees

Resolution: 620x412

Locations: Home pier, Espoo, Finland

Description

Only three hours could go into the making of this peculiar portrait, picturing the beautiful Bubble Nebula, aka NGC7635, and the bright open cluster M52.

The Bubble is an area of ionized hydrogen, currently being blown away by the stellar wind of a massive and hot central star, whose mass is believed to be twenty to forty times that of our Sun. The Bubble extends over a diameter of about 10 light-years, lies 11000 light-years away and is a set for very violent and turbulent processes at work.

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Bubble nebula and M52, 



    
        

            Salvatore Iovene