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77 Ceti

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77 Ceti

Observation data
Epoch J2000 Equinox J2000

Constellation

Cetus

Right ascension

02^h34^m 42.62373^s^[1]

Declination

−07° 51′ 34.0113″^[1]

Apparent magnitude (V)

5.731^[2]

Characteristics

Spectral type

K2 III^[3]

U−B color index

+1.68^[4]

B−V color index

+1.393±0.008^[5]

Astrometry

Radial velocity (R_v)

24.9±2^[6] km/s

Proper motion (μ)

RA: +59.581^[1] mas/yr
Dec.: −63.696^[1] mas/yr

Parallax (π)

6.6740 ± 0.1337 mas^[1]

Distance

489 ± 10 ly
(150 ± 3 pc)

Absolute magnitude (M_V)

+0.01^[5]

Details

Radius

25.02+1.39
−4.09^[1] R_☉

Luminosity

189.1±4.5^[1] L_☉

Temperature

4,279+400
−114^[1] K

Other designations

BD−08°484, HD 16074, HIP 12002, HR 752, SAO 129984^[7]

Database references

SIMBAD

data

77 Ceti is a single,^[8] orange-hued star located 489^[1] light years away in the equatorial constellationofCetus. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.7.^[2] This is an evolved giant star with a stellar classification of K2 III.^[3] It is radiating 187 times the Sun's luminosity from its photosphere at an effective temperature of 4,206 K.^[9]

References[edit]

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this sourceatVizieR.

^ ^a ^b Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.

^ ^a ^b Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.

^ Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.

^ ^a ^b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.

^ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Carnegie Institute Washington D.C. Publication. Washington. Bibcode:1953GCRV..C......0W.

^ "77 Cet". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 29, 2018.

^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.