3C 20

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3C 20
Observation data (Epoch J2000)
Constellation Cassiopeia
Right ascension 00h 43m 08.84s[1]
Declination +52° 03′ 33.8″[1]
Redshift 0.174
Distance ~ 700 Mpc
Type E[1]
Apparent dimensions (V) 76.8 × 76.8 arcsec²[2] (radiogalaxy)
Apparent magnitude (V) 19[3]
Other designations
DA 22 , LEDA 2817481 , 3C 20
See also: Quasar, List of quasars

3C 20 is a radio galaxy[4] located in the constellation Cassiopeia.

References[edit]

  1. ^ a b c "NASA/IPAC Extragalactic Database". Results for QSO B1637+826. Retrieved 2006-10-26. 
  2. ^ www.jb.man.ac.uk/atlas/
  3. ^ Simbad
  4. ^ Hiltner, P. R.; Meisenheimer, K.; Roeser, H. J.; Laing, R. A.; Perley, R. A. (1994). "Hot SPOT 3C20 west: an optical synchrotron source". Astronomy and Astrophysics 286: 25–36. Bibcode:1994A&A...286...25H. 

External links[edit]

Coordinates: Sky map 00h 43m 09.21s, +52° 03′ 33.5″