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Contains:  NGC 7789, The star ρCas
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NGC 7789: Caroline's Rose, 





    
        

            ThomasR
NGC 7789: Caroline's Rose

NGC 7789: Caroline's Rose

Technical card

Resolution: 4902x3265

Dates:April 6, 2019

Frames: 26x120" ISO800

Integration: 0.9 hours

Darks: ~10

Flats: ~10

Bias: ~200

Avg. Moon age: 1.06 days

Avg. Moon phase: 1.28%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 2630254

RA center: 23h 54' 47"

DEC center: +56° 45' 57"

Pixel scale: 2.000 arcsec/pixel

Orientation: 0.371 degrees

Field radius: 1.636

Locations: Balkon, Dresden, Sachsen, Germany

Data source: Backyard

Description

The open cluster NGC 7789 was discovered by Caroline Herschel in 1783 and is also known as Caroline's Rose Cluster. The distance to earth is 8000 light years and the age is estimated with 1,5 billion years, much older than other clusters.

This is the first light of my new HEQ-5 and the TS Photoline 72 f/6.

Comments

Author

astro_willy
ThomasR
License: None (All rights reserved)
640
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NGC 7789: Caroline's Rose, 





    
        

            ThomasR