Galaxy 0402+379

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**0402+379**
Observation data (Epoch J2000)
Galaxy	List of galaxies

Constellation	XXX
Right ascension	04^h 05^m 49.2^s^[1]
Declination	+38° 03′ 32″^[1]
Redshift	16,500 ± 300 km/s^[1]
Distance	750 Mly (230 Mpc)^{[citation needed]}
Type	Sy^[1]
Apparent dimensions (V)
Apparent magnitude (V)	17.2^[1]
Notable features
Other designations
4C +37.11^[1]

Galaxy 0402+379 is a radio galaxy and elliptical galaxy with the binary supermassive blackholes with the least separation of any directly observed binaries, as of 2006. The separation between the two is 24 light-years or 7.3 parsecs, with an orbital period of 150,000 years.

The previous directly observed least separation of supermassive binary black holes was 2,400 light-years. However quasar OJ 287 is inferred to have a binary supermassive black hole pair with an orbital period of 12 years, and thus be much closer together, however, they have not been directly observed.