Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  M 52  ·  NGC 7635  ·  NGC 7654
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Messier 52 - MGC7635, 



    
        

            Péter Feltóti
Messier 52 - MGC7635
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Messier 52 - MGC7635

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Messier 52 - MGC7635, 



    
        

            Péter Feltóti
Messier 52 - MGC7635
Powered byPixInsight

Messier 52 - MGC7635

Technical card

Imaging cameras: Canon EOS 600D(a)

Mounts: SkyWatcher NEQ6 PRO belt modified

Focal reducers: Skywatcher F4 coma corrector

Accessory: Lacerta Mgen autoguider


Dates:Sept. 9, 2016

Frames: 123x300" (10h 15')

Integration: 10h 15'

Avg. Moon age: 7.40 days

Avg. Moon phase: 50.15%


Basic astrometry details

Astrometry.net job: 1501765

RA center: 23h22m15s

DEC center: +61°2157

Pixel scale: 3.548 arcsec/pixel

Orientation: 17.265 degrees

Field radius: 0.910 degrees


Resolution: 1536x1024

Locations: Zselic Starlight Park, Kaposvár, Hungary; Kékes, Kékes-tető, Hungary

Description

If it is autumn, then it's Cassiopeia, and as we are still deep in the disk of Milky Way, the menu is open cluster and red glowing clouds of hydrogen. The picture shows Messier 52 open cluster and NGC7635 Bubble nebula. It seems that the two object are only 0,5 arc-sec far away from each other, in reality they are much more farther. While the Bubble nebula which is created and is being forced to glow in H alpha light by a super giant star and is 7 000 light years away, M52 is about 3000-7000 ly. The uncertainty comes from the fact that interstellar dust absorbs light making the measurment and estimation less accurate. The inflation of the gas bubble is still in progress. During that one week, while I was shooting at it, it expanded 1 billion km.

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Messier 52 - MGC7635, 



    
        

            Péter Feltóti