Type of Object: Hercules A is a powerful radio galaxy. At 1420 MHz it
looks like a double source and is thought to be an active galaxy.
It’s energy output is equivalent to that of 10 billion Crab Nebula! The structure consists of two radio lobes and two jets. Five spherical shells make up the western lobe. Also, the nucleus appears to be a double nucleus. Her A could be two galaxies merging or interacting.
Distance: 2000 Million light years
330,000 lyr diameter components separated by 900,000 lyr
Coordinates (Epoch J2000):
Right Ascension: 16 51 08.0
Declination: +4 59 33.8
Other Names: 3C 348
Radio Brightness at 1420 MHz (21 cm): 47 Jy