Hercules A

Hercules A
Visible light image obtained by Hubble superposed with a radio image taken by the VLA.
Observation data (J2000 epoch)
ConstellationHercules
Right ascension16h 51m 08.15s
Declination+04° 59′ 33.32″
Redshift0.155000
Heliocentric radial velocity46,468 km/s
Distance2.1 Gly
(643.9 Mpc)
Apparent magnitude (V)0.261
Apparent magnitude (B)0.345
Characteristics
TypecD; E3
Other designations
Herc A, 3C 348, PGC 59117, 4C +05.66, MCG +01-43-006, NRAO 0518

Hercules A is a bright astronomical radio source in the constellation Hercules corresponding to the galaxy 3C 348.[1][2]

  1. ^ "A Multi-Wavelength View of Radio Galaxy Hercules A". NASA.
  2. ^ Baum, Stefi A.; O'Dea, Christopher P.; de Koff, Sigrid; Sparks, William; Hayes, Jeffrey J. E.; Livio, Mario; Golombek, Daniel (1996-07-01). "Hubble Space Telescope Observations of Obscuration Rings in Hercules A: Implications for Energy Transport in Powerful Radio Galaxies". The Astrophysical Journal. 465: L5. Bibcode:1996ApJ...465L...5B. doi:10.1086/310131. ISSN 0004-637X.