NGC 7250

NGC 7250 is an irregular galaxy located in the Lacerta constellation. It is a blue-colored galaxy with bright bursts of star formation: its star-forming rate is more than an order of magnitude greater than that of the Milky Way.^[5]

NGC 7250
NGC 7250, as taken by the Hubble Space Telescope[1]
Observation data (J2000 epoch)
Constellation	Lacerta[1]
Right ascension	22h 18m 17.776s[2]
Declination	+40° 33′ 44.66″[2]
Redshift	0.0039[3]
Heliocentric radial velocity	1,168 km/s[3]
Distance	49.99 ± 14.37 Mly (15.328 ± 4.407 Mpc)[4]
Apparent magnitude (V)	12.58[3]
Apparent magnitude (B)	13.22[3]
Characteristics
Type	Irr
Mass	4.7×108[5] M☉
Other designations
PGC 68535, UGC 11980, MCG+07-45-024, Mrk 907, Z 530-22

In 2013, a type Ia supernova was detected within the galaxy, and was designated SN 2013dy. It was detected about 2.4 hours after the explosion, making it the earliest-known detection of a supernova at the time.^[6]

The brighter star located in front of the galaxy is named TYC 3203-450-1, and is barely studied. It is about a million times closer to Earth than it the galaxy itself.^[7]