| 3C 309.1 | |
|---|---|
 The quasar 3C 309.1. | |
| Observation data (J2000.0 epoch) | |
| Constellation | Ursa Minor |
| Right ascension | 14h 59m 07.583s |
| Declination | +71° 40′ 19.867″ |
| Redshift | 0.901113 |
| Heliocentric radial velocity | 270,147 km/s |
| Distance | 7.665 Gly |
| Apparent magnitude (V) | 16.78 |
| Apparent magnitude (B) | 17.24 |
| Characteristics | |
| Type | CSS |
| Other designations | |
| LEDA 2821824, 4C 71.15, WMAP 071, QSO B1458+718, 2E 3367, NRAO 464, 1Jy 1458+718 | |
3C 309.1 is a quasar[1] located in the constellation of Ursa Minor. It has a redshift (z) of 0.90[2] and was first identified as an astronomical radio source from the Third Cambridge Catalogue of Radio Sources by in 1966.[3] This object contains a compact steep spectrum (CSS) source,[4] and is classified as one of the brightest and largest of its kind.[2][5]
- ^ Simon, R. S. (1983-09-01). "High Resolution Maps of the Quasars 3C48, 3C147, 3C309.1, 3C380, and 3C454.3 Using 90cm VLBI". Bulletin of the American Astronomical Society. 15: 976. Bibcode:1983BAAS...15..976S.
- ^ a b Aaron, Scott E.; Wardle, John F.C.; Roberts, David H. (1998). "A Multi-Frequency VLBI Polarization Study of the CSS Quasar 3C 309.1". International Astronomical Union Colloquium. 164: 105–106. doi:10.1017/s0252921100044729. ISSN 0252-9211.
- ^ Véron, P. (June 1966). "Optical Positions for Radio Sources in the 3c Revised Catalogue". The Astrophysical Journal. 144: 861. Bibcode:1966ApJ...144..861V. doi:10.1086/148682. ISSN 0004-637X.
- ^ Gawronski, Marcin; Kus, Andrzej J. (2007-11-22). "Multi-frequency VSOP and VLBI observations of the quasar 3C309.1" (PDF). Proceedings of 8th European VLBI Network Symposium — PoS(8thEVN). Trieste, Italy: Sissa Medialab: 020. doi:10.22323/1.036.0020.
- ^ "3C 309.1 | Image Gallery | Brandeis Radio Astronomy Group | Brandeis University". www.brandeis.edu. Retrieved 2024-11-17.