3C 9

3C 9 is a lobe-dominated quasar^[1][3] located in the constellation Pisces. This quasar is classified as radio loud with a jet.^[4][5] It has X-ray emission located primary on two sides of its nucleus, based on Chandra observations.^[4]

3C 9
Observation data (Epoch J2000)
Constellation	Pisces
Right ascension	00h 20m 25.22s
Declination	+15° 40′ 54.7″
Redshift	2.0194[1] 240,526 km/s[1]
Distance	10 billion light-years (light travel time)[2] ~17 billion light-years (present comoving distance)[2]
Type	FR II RG[2] QSO[1][2]
Apparent magnitude (V)	17.62[1]
Other designations
2C 26, LEDA 2817473[1]
See also: Quasar, List of quasars

The host of 3C 9 is described as a ring-like galaxy undergoing a merger. The two nuclei of the merging galaxies are estimated to be 9 kiloparsecs apart.^[6]

In 1965, it was the most distant object discovered at the time of discovery. This was the first object found with a redshift in excess of 2.^[7]