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Star in the constellation Cetus
3 Ceti is a single,
[10] orange-hued
star located around 2,100
light years away
[11] in the
equatorial
constellation of
Cetus . It is visible to the naked eye with an
apparent visual magnitude of 4.95.
[2] The star is moving closer to the Earth with a heliocentric
radial velocity of −42 km/s.
[5] It has a
peculiar velocity of 60.7+3.8 −6.2 km/s and is a candidate
runaway star .
[6]
This is a
red supergiant star with a
stellar classification of K3 Ib,
[4] although Houk and Swift (1999) classed it as a normal
giant at K3 III.
[3] It displays microvariability, undergoing changes in brightness with a
frequency of 11.2 times per day and an
amplitude of 0.0053 in magnitude.
[4] The star is about 30 million years old with nine times the
mass of the Sun .
[6] It is radiating 10,170
[2] times the
Sun's luminosity from its
photosphere at an
effective temperature of 4,152 K.
[7]
It is a possible
supernova candidate.
[11]
References
^
a
b
c
d
e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics . 474 (2): 653–664.
arXiv :
0708.1752 .
Bibcode :
2007A&A...474..653V .
doi :
10.1051/0004-6361:20078357 .
S2CID
18759600 .
^
a
b
c
d
e Hohle, M.M.; et al. (2010). "Masses and luminosities of O- and B-type stars and red supergiants". Astronomische Nachrichten . 331 (4): 349.
arXiv :
1003.2335 .
Bibcode :
2010AN....331..349H .
doi :
10.1002/asna.200911355 .
S2CID
111387483 .
^
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 .
^
a
b
c Koen, Chris; Eyer, Laurent (2002).
"New periodic variables from the Hipparcos epoch photometry" . Monthly Notices of the Royal Astronomical Society . 331 (1): 45.
arXiv :
astro-ph/0112194 .
Bibcode :
2002MNRAS.331...45K .
doi :
10.1046/j.1365-8711.2002.05150.x .
^
a
b
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 .
^
a
b
c
d Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society , 410 (1): 190–200,
arXiv :
1007.4883 ,
Bibcode :
2011MNRAS.410..190T ,
doi :
10.1111/j.1365-2966.2010.17434.x ,
S2CID
118629873
^
a
b
c
d Luck, R. Earle (2014).
"Parameters and Abundances in Luminous Stars" . The Astronomical Journal . 147 (6): 137.
Bibcode :
2014AJ....147..137L .
doi :
10.1088/0004-6256/147/6/137 .
^ De Medeiros, J. R.; Udry, S.; Burki, G.; Mayor, M. (2002).
"A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars" . Astronomy and Astrophysics . 395 : 97–98.
Bibcode :
2002A&A...395...97D .
doi :
10.1051/0004-6361:20021214 .
^
"3 Cet" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved December 24, 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 .
^
a
b Asakura, K.; Gando, A.; Gando, Y.; Hachiya, T.; Hayashida, S.; Ikeda, H.; Inoue, K.; Ishidoshiro, K.; Ishikawa, T. (2015-06-03).
"KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS" . The Astrophysical Journal . 818 : 91.
arXiv :
1506.01175v4 .
doi :
10.3847/0004-637X/818/1/91 .