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



    
        

            Péter Feltóti
Messier 52 - MGC7635
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Messier 52 - MGC7635

Messier 52 - MGC7635, 



    
        

            Péter Feltóti
Messier 52 - MGC7635
Powered byPixInsight

Messier 52 - MGC7635

Acquisition details

Dates:
Sept. 9, 2016
Frames:
123×300(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.8

DEC center: +61°2157

Pixel scale: 3.548 arcsec/pixel

Orientation: 17.265 degrees

Field radius: 0.910 degrees

Resolution: 1536x1024

File size: 1.5 MB

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

Comments

Sky plot

Sky plot

Histogram

Messier 52 - MGC7635, 



    
        

            Péter Feltóti