| 3C 371 | |
|---|---|
 | |
| Observation data (Epoch J2000) | |
| Constellation | Draco |
| Right ascension | 18h 06m 50.681s [1] |
| Declination | +69° 49′ 28.11″ [1] |
| Redshift | 0.051 [1] [2] |
| Distance | 730 million light-years 224 Mpc [3] |
| Type | BL Lac [1] [2] [3] FRI RG [4] |
| Apparent magnitude (V) | 14.4 [2] ±1.5 [5] |
| Other designations | |
| UGC 11130, PGC 61417, 2E 4023, 7C 180717.90+694858.00, QSO B1807+698 [1] | |
| See also: Quasar, List of quasars | |
3C 371 is a BL Lac object [1] [2] located in the constellation Draco. With a redshift of 0.051, [2] this active galaxy is about 730 million light-years away. [3]
3C 371 was first associated with the BL Lac class by Miller in 1975, [4] and is among the nearest and brightest BL Lac objects. [4] Optical jet emission from 3C 371 was first detected in ground-based images by Nilsson et al. in 1997, and confirmed with the Hubble Space Telescope in 1999. [4] The jet's viewing angle may be less than 18 degrees, [4] but no superluminal motion has been detected, despite frequent monitoring by the Very Long Baseline Array (VLBA). [4]
Photos of the object dating back to 1895 suggest that its brightness can vary by 1.5 magnitudes. [5]
