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Contains:  M 3, NGC 5272
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M3 wide field, 





    
        

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M3 wide field

M3 wide field

Technical card

Resolution: 4925x3250

Frames: 64x60"

Integration: 1.1 hours

Astrometry.net job: 2012431

RA center: 205.548 degrees

DEC center: 28.361 degrees

Pixel scale: 2.394 arcsec/pixel

Orientation: 17.458 degrees

Field radius: 1.962 degrees

Description

Messier 3 (NGC 5272) is a globular cluster about 34 000 light years away. It contains approximately half a million stars.

NGC 5263 is a galaxy at a distance of about 220 million light years. NGC 5251 and IC 4307 are galaxies at distances of about 500 million light years.

I had a problem with banding across the image probably due to city light pollution. Had to make background darker than I would have liked.

Gain: "highest dynamic range". Sensor temperature: ~ -22 C.

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NeedMoreCoffee
NeedMoreCoffee
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M3 wide field, 





    
        

            NeedMoreCoffee