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| Hercules A | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 16h 51m 08.15s |
| Declination | +04° 59′ 33.32″ |
| Redshift | 0.155000 |
| Heliocentric radial velocity | 46,468 km/s |
| Distance | 2.1 Gly (643.9 Mpc) |
| Apparent magnitude (V) | 0.261 |
| Apparent magnitude (B) | 0.345 |
| Characteristics | |
| Type | cD; 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]
- ^ "A Multi-Wavelength View of Radio Galaxy Hercules A". NASA.
- ^ 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.