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Alpha Ceti information


α Ceti
Location of α Ceti (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 03h 02m 16.77307s[1]
Declination +04° 05′ 23.0596″[1]
Apparent magnitude (V) 2.53[2]
Characteristics
Evolutionary stage AGB[3]
Spectral type M1.5 IIIa[4]
U−B color index +1.93[2]
B−V color index +1.64[2]
Astrometry
Radial velocity (Rv)−26.08±0.02[5] km/s
Proper motion (μ) RA: −10.41±0.51[1] mas/yr
Dec.: −76.85±0.36[1] mas/yr
Parallax (π)13.09 ± 0.44 mas[1]
Distance249 ± 8 ly
(76 ± 3 pc)
Absolute magnitude (MV)−3.2±0.3[4]
Details
Mass2.3±0.2;[6] 1.465–1.933[7] M
Radius100.2±3.4[7] R
Luminosity1,764±342[7] L
Surface gravity (log g)0.66±0.07[7] cgs
Temperature3,738±170[7] K
Metallicity [Fe/H]−0.24±0.09[7] dex
Rotational velocity (v sin i)6.9[8] km/s
Other designations
Menkar, 92 Ceti, HR 911, BD+03°419, HD 18884, SAO 110920, FK5 107, HIP 14135
Database references
SIMBADdata

Alpha Ceti (α Ceti, abbreviated Alpha Cet, α Cet), officially named Menkar /ˈmɛŋkɑːr/,[9][10] is the second-brightest star in the constellation of Cetus. It is a cool luminous red giant estimated to be about 250 light years away based on parallax.

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  9. ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
  10. ^ "IAU Catalog of Star Names". Retrieved 28 July 2016.

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asterism consisting of α Ceti, κ1 Ceti, λ Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese...

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Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus. It consists of three stars: Rigil...

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Cetus

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violent storms. Lambda, Mu, Xi, Nu, Gamma, and Alpha Ceti represented its head; Omicron, Zeta, and Chi Ceti represented its body; Eta Eri, Tau Cet, and Upsilon...

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List of proper names of stars

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Gall and Inglis. p. 52 – via Internet Archive. Kaler, James B. "Menkar (Alpha Ceti)". Stars. University of Illinois. Archived from the original on 2012-05-31...

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Gamma Ceti

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of Gamma Ceti, Alpha Ceti, Kappa1 Ceti, Lambda Ceti, Mu Ceti, Xi1 Ceti, Xi2 Ceti, Nu Ceti, Delta Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently...

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Beta Ceti

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Beta CetiCeti, abbreviated Beta Cet, β Cet), officially named Diphda /ˈdɪfdə/, is the brightest star in the constellation of Cetus. Although designated...

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الثاني Beta Ceti Dschubba al-Jab'hah the Forehead (of the scorpion) الجبهة Delta Scorpii Dubhe Kāhil ud-Dubb (the back of) the Bear كاهل الدّب Alpha Ursae Majoris...

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stars are both flare stars with the variable star designations BL Ceti and UV Ceti. The star system was discovered in 1948 by Willem Jacob Luyten in the...

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Alpha Centauri Bb

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to capture the starship but is thwarted by James T. Kirk and exiled to Ceti Alpha V, where he has the chance to create a new society with his people. In...

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asterism consisting of λ Ceti, α Ceti, κ1 Ceti, μ Ceti, ξ1 Ceti, ξ2 Ceti, ν Ceti, γ Ceti, δ Ceti, 75 Ceti, 70 Ceti, 63 Ceti and 66 Ceti. Consequently, the Chinese...

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Betelgeuse

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