| Field | Units | Value |
|---|---|---|
| 3CRR name | 3C303 | |
| IAU name | 1441+522 | |
| Redshift | 0.141 (r) | |
| 178-MHz flux | (Jy) | 12.2 |
| Sp. index | 0.76 | |
| FR class | II (r) | |
| 5-GHz core flux | (mJy) | 150 (r) |
| Old radio position | (reference) | (r) |
| `Best' radio map | (reference) | (r) |
| RA | (B1950) | 14 41 24.820 |
| DEC | (B1950) | +52 14 18.40 |
| Optical position | (reference) | (r) |
| Type | 2 | |
| LAS | (arcsec) | 47 |
| Size | (kpc) | 120 |
| Scale | (kpc/arcsec) | 2.48 |
| Luminosity distance | (Mpc) | 667 |
| 178-MHz luminosity | (W/Hz/sr) | 500 x 1023 |
| B magnitude | (mag) | 18.23 (r) |
| V magnitude | (mag) | 17.01 (r) |
| R magnitude | (mag) | 16.33 (r) |
| r magnitude | (mag) | -- |
| Radio RA | (J2000) | 14 43 02.758 |
| Radio DEC | (J2000) | +52 01 37.16 |
| New IAU name | J1443+520 |
See the image of this source in the 3CRR Atlas.