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Star in the costellation Corvus
3 Corvi is a single
[9]
star in the southern
constellation of
Corvus , located 192
light years away from the Sun.
[1] It is visible to the naked eye as a faint, white-hued star with an
apparent visual magnitude of 5.45.
[2] This object is moving further from the Earth with a heliocentric
radial velocity of +14 km/s.
[5]
This is an
A-type main-sequence star
[3] with a
stellar classification of A1 V.
[4] It has 2.14
[6] times the
mass of the Sun and 1.87
[7] times the
Sun's radius . The star is around 900 million years old with a high rate of rotation, showing a
projected rotational velocity of 130 km/s.
[5] It is radiating ten
[5] times the
luminosity of the Sun from its
photosphere at an
effective temperature of 9,671 K.
[6] An
infrared excess has been detected, suggesting that a
debris disk with a temperature of 150 K is orbiting AU
[7]
References
^
a b c d e f 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 source at
VizieR .^
a b c d 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 . ^
a b Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics , 537 : A120,
arXiv :
1201.2052 ,
Bibcode :
2012A&A...537A.120Z ,
doi :
10.1051/0004-6361/201117691 ,
S2CID
55586789 . ^
a b Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan,
Bibcode :
1988mcts.book.....H . ^
a b c d e Iglesias, D.; et al. (October 2018), "Debris discs with multiple absorption features in metallic lines: circumstellar or interstellar origin?", Monthly Notices of the Royal Astronomical Society , 480 (1): 488–520,
arXiv :
1806.10687 ,
Bibcode :
2018MNRAS.480..488I ,
doi :
10.1093/mnras/sty1724 ,
S2CID
119221436 . ^
a b c d David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal , 804 (2): 146,
arXiv :
1501.03154 ,
Bibcode :
2015ApJ...804..146D ,
doi :
10.1088/0004-637X/804/2/146 ,
S2CID
33401607 . ^
a b c Cotten, Tara H.; Song, Inseok (July 2016), "A Comprehensive Census of Nearby Infrared Excess Stars", The Astrophysical Journal Supplement Series , 225 (1): 24,
arXiv :
1606.01134 ,
Bibcode :
2016ApJS..225...15C ,
doi :
10.3847/0067-0049/225/1/15 ,
S2CID
118438871 , 15.
^
"3 Crv" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2019-04-11 .
^ De Rosa, R. J.; et al. (2014), "The VAST Survey - III. The multiplicity of A-type stars within 75 pc", Monthly Notices of the Royal Astronomical Society , 437 (2): 1216,
arXiv :
1311.7141 ,
Bibcode :
2014MNRAS.437.1216D ,
doi :
10.1093/mnras/stt1932 ,
S2CID
88503488 .
