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Contains:  Double cluster, NGC 869, NGC 884, NGC 957, The star 7Per, The star 8Per, The star 9Per
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h & chi Persei, 



    
        

            ThomasR
h & chi Persei
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h & chi Persei

Technical card


Dates:Oct. 15, 2017

Frames: 47x40" ISO800

Integration: 0.5 hours

Darks: ~20

Bias: ~200

Avg. Moon age: 25.26 days

Avg. Moon phase: 19.25%

Bortle Dark-Sky Scale: 5.00

Temperature: 14.00


Basic astrometry details

Astrometry.net job: 3259806

RA center: 2h 21' 10"

DEC center: +57° 48' 3"

Pixel scale: 4.547 arcsec/pixel

Orientation: 72.366 degrees

Field radius: 3.347 degrees


Resolution: 4410x2940

Locations: Balkon, Dresden, Sachsen, Germany

Data source: Backyard

Description

This is the reuploaded image of the famous double cluster NGC 869/NGC 884, also known as H & Chi Persei. The double cluster lie at a distance of 7500 light years and have an age of 12,8 million years. H&Chi are dominated by five red supergiants and more than 300 blue-white-giants.

This is my second picture where I used the Star Adventurer, but reprocessed in PI.

Comments

Author

astro_willy
ThomasR
License: None (All rights reserved)
1231
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Revisions

  • h & chi Persei, 



    
        

            ThomasR
    Original
  • h & chi Persei, 



    
        

            ThomasR
    E
  • Final
    h & chi Persei, 



    
        

            ThomasR
    F

Sky plot

Sky plot

Histogram

h & chi Persei, 



    
        

            ThomasR