Messier Index/M103

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Messier 103 (also known as M103, or NGC 581) is an w:open cluster in the w:constellation Cassiopeia. It was discovered by w:Pierre Méchain in w:1781^{[citation needed]}. M103 is at a distance of about 8,000 w:light-years from w:Earth.

NGC 581

Observation data (J2000.0 epoch)
Right ascension	01^h 33.2^m
Declination	+60° 42′
Distance	8.5 kly ()
Apparent magnitude (V)	7.4
Apparent dimensions (V)	6.0'
Other designations	M103

External links

Retrieved from "https://en.wikibooks.org/wiki/Messier_Index/M103"