3C 236 North | |
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Observation data (J2000 epoch) | |
Constellation | Leo Minor |
Right ascension | 10h 06m 01.7s[1] |
Declination | +34° 54′ 10″[1] |
Redshift | 0.099358±0.000020[1] |
Heliocentric radial velocity | 29,786.783215±5.995850 km/s[1] |
Galactocentric velocity | 29,763±6 km/s[1] |
Distance | 442.9 ± 31.0 Mpc (1,445 ± 101.1 Mly)h−1 0.6774 (Comoving)[1] 409.6 ± 0.09198 Mpc (1.33584 ± 0.0003 Gly)h−1 0.6774 (Light-travel)[1] |
Apparent magnitude (V) | 16.357 (g)[1] |
Apparent magnitude (B) | 15.97[2] |
Characteristics | |
Type | WLRG;LERG[1] |
Size | 394,290 ly × 268,130 ly (120.89 kpc × 82.21 kpc) (diameter; 2MASS K-band total isophote)[1] 245,300 ly × 218,300 ly (75.20 kpc × 66.93 kpc) (diameter; SDSS D25.0 B-band isophote)[a] |
Apparent size (V) | 0′.46 × 0′.38[1] |
Other designations | |
PGC 29329,[1] LEDA 29329, 7C 1003+3508, 4C 35.22 |
3C 236 is a Fanaroff and Riley Class II (FR II) radio galaxy. It is among the largest known radio galaxies, with the radio structure having a total linear size in excess of 4.5 Mpc (15 million light years). The galaxy features a "double-double" radio morphology consisting of the giant relic 4.5 Mpc source and an inner 2 kpc compact steep spectrum radio source. A recent starburst episode near the nucleus may be related to the event resulting in re-ignition of radio activity.[3]
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