| 7C 1415+2556 |
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| File:DESI Legacy Surveys image of 7C 1415+2556.jpg |
| Observation data (J2000.0 epoch) |
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| Constellation | Boötes |
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| Right ascension | 14h 17m 56.67s |
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| Declination | +25d 43m 26.22s |
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| Redshift | 0.240000 |
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| Helio radial velocity | 71,950 km/s |
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| Distance | 3.249 Gly (996.1 Mpc) |
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| Apparent magnitude (V) | 0.052 |
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| Apparent magnitude (B) | 0.069 |
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| Characteristics |
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| Type | Opt.var. BLLAC |
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| Notable features | BL Lacertae object |
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| Other designations |
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| RX J1417.9+2543, PGC 1747267, 2E 1415+2557, RBS 1366, 2MASS J14175667+2543260, MG2 J141757+2543, 2FGL J1418.1+2539, EXO 1415.6+2557, SWIFT J1417.7+2539 |
| See also: Galaxy, List of galaxies |
7C 1415+2556 also known as 2E 1415+2557 and PGC 1747267, is a BL Lac object with an X-ray flux of >=4×10-13 ergs s-1 cm-2,[1] located in the constellation of Boötes. With a redshift of 0.24, the galaxy is located 3.2 billion light years from Earth.[2] It was discovered in 1988 as part of a program of optical polarimetry of a complete sample of radio sources.[3]
References
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