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3C 191
Observation data (Epoch J2000)
Constellation	Cancer
Right ascension	08^h 04^m 47.9625^s^[1]
Declination	+10° 15′ 23.781″^[1]
Redshift	1.956000^[2]
Distance	5,038 megaparsecs (1.643×10¹⁰ ly) h⁻¹ _0.73^[2]
Type	Rad, QSO, X, G^[1] QSO, FR II^[2]
Apparent magnitude (V)	18.40^[1]
Other designations
LEDA 2817585, 4C +10.25, QSO B0802+10
See also: Quasar, List of quasars

3C 191 is a quasar^[1] located in the constellation Cancer. It is located at redshift z = 1.95 and is hosted by an elliptical galaxy. The quasar contains a radio jet known to contain a high rotation measure with a thin shell configuration created in a form of wind inside the central regions.^[3]

According to studies, the quasar is producing energy outflow winds with a rate of 1.9 x 10⁴⁵ ergs s⁻¹. The elliptical host of 3C 191, is said to have a gas density of ~ 0.17 cm⁻³ with a magnetic field measuring ~ 2.5 x 10⁻³ μG.^[3] In additional, 3C 191 contains a number of absorption lines.^[4]^[5]^[6]

References

^ ^a ^b ^c ^d ^e "Query : 3C 191". Simbad. Centre de Données astronomiques de Strasbourg. Retrieved 2 June 2015.
^ ^a ^b ^c "NED results for object 3C 191". NASA/IPAC Extragalactic Database. Retrieved 2 June 2015.
^ ^a ^b Perry, Judith J.; Dyson, J. E. (1990-10-01). "3C 191 Revisited: Circumquasar Shells and Radio Jets". The Astrophysical Journal. 361: 362. Bibcode:1990ApJ...361..362P. doi:10.1086/169202. ISSN 0004-637X.
^ Hamann, Frederick W.; Barlow, T. A.; Chaffee, F. C.; Foltz, C. B.; Weymann, R. J. (2001-05-18). "High Resolution Spectra of Quasar AALs: 3C 191". arXiv:astro-ph/0105337.
^ Williams, R. E.; Strittmatter, P. A.; Carswell, R. F.; Craine, E. R. (1975-12-01). "Splitting of absorption lines in 3C 191". The Astrophysical Journal. 202: 296–302. Bibcode:1975ApJ...202..296W. doi:10.1086/153976. ISSN 0004-637X.
^ Hamann, Frederick W.; Barlow, T. A.; Chaffee, F. C.; Foltz, C. B.; Weymann, R. J. (2001-03-20). "High-Resolution Keck Spectra of the Associated Absorption Lines in 3C 191". The Astrophysical Journal. 550 (1): 142–152. arXiv:astro-ph/0011030. Bibcode:2001ApJ...550..142H. doi:10.1086/319733. ISSN 0004-637X.

Constellation of Cancer

Stars

Bayer	α (Acubens) β (Tarf) γ (Asellus Borealis) δ (Asellus Australis) ε (Meleph) ζ¹ (Tegmine) ζ² η θ ι κ λ (Piautos) μ¹ μ² ν ξ (Nahn) ο¹ ο² π¹ π² ρ¹ (Copernicus) ρ² σ¹ σ² σ³ τ υ¹ υ² φ¹ φ² χ ψ¹ ψ² ω¹ ω²
Flamsteed	1 3 5 7 8 11 12 15 20 (d¹) 21 24 25 (d²) 27 28 (CX) 29 34 35 36 (c) 37 38 39 40 42 44 45 (A¹) 46 49 (b) 50 (A²) 53 54 57 60 61 66 67 68 70 71 75 78 79 80 83
Variable	R X RS VZ AZ DX EI HM
HD	72945 72946 73534 (Gakyid) 79498
Other	GJ 3470 (Kaewkosin) HIP 41378 K2-187 LHS 2090 Pr0211 WD J0914+1914 YBP 1194

Exoplanets	55 Cancri b c d e f β Cancri b GJ 3470 b HD 73534 b HIP 41378 b c d e f Pr0201 b

Star clusters	Beehive Cluster Messier 67

Nebulae	Abell 30 Abell 31

Galaxies

NGC	2503 2535 2536 2608 2623 2648 2775 2801 2803 2804 2812
Other	3C 191 3C 212 3C 215 DLA0817g IC 2431 OJ 287 QSO B0839+187 UGC 4457 4C +29.30 SDSS J0849+1114

Galaxy clusters	Abell 671 Musket Ball Cluster