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Contains:  M 38, NGC 1912, NGC 1907
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M38 Open Star Cluster, 





    
        

            AlBroxton
M38 Open Star Cluster

M38 Open Star Cluster

Technical card

Resolution: 900x578

Dates:Jan. 3, 2010

Frames: 20x60"

Integration: 0.3 hours

Avg. Moon age: 17.87 days

Avg. Moon phase: 89.51%

Astrometry.net job: 596953

RA center: 82.121 degrees

DEC center: 35.870 degrees

Pixel scale: 9.465 arcsec/pixel

Orientation: 66.328 degrees

Field radius: 1.406 degrees

Description

Messier 38 (also known as M38 or NGC 1912) is an open cluster in the Auriga constellation. It was discovered by Giovanni Batista Hodierna before 1654 and independently found by Le Gentil in 1749. M36 and M37, also discovered by Hodierna, are grouped together with M38 at a distance of about 4,200 light years away from Earth. At its distance of 4,200 light years, its angular diameter of about 20' corresponds to about 25 light years, similar to that of its more distant neighbor M37. It is of intermediate age (about 220 million years, according to Sky Catalog 2000) and features a yellow giant of apparent magnitude +7.9 and spectral type G0 as its brightest member. This corresponds to an absolute magnitude of -1.5, or a luminosity of 900 suns. For comparison, the Sun would appear as a faint magnitude +15.3 star from the distance of M38.

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Author

AlBroxton
AlBroxton
License: None (All rights reserved)
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M38 Open Star Cluster, 





    
        

            AlBroxton