NGC 7139

NGC 7139
	250px NGC 7139
Observation data; (Epoch J2000)
Right ascension	21h 46m 08.586s
Declination	+63° 47′ 29.45″
Apparent magnitude (V)	13
Constellation	Cepheus
Physical characteristics
	See also: Planetary nebula, Lists of nebulae

NGC 7139 is a planetary nebula located in the constellation of Cepheus. It was discovered on November 5, 1787 by William Herschel^[2].

References

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NGC 7139
250px NGC 7139
Observation data (Epoch J2000)
Right ascension	21^h 46^m 08.586^s^[1]
Declination	+63° 47′ 29.45″^[1]
Apparent magnitude (V)	13^[2]
Constellation	Cepheus^[2]
Physical characteristics
See also: Planetary nebula, Lists of nebulae