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Star in the constellation Corvus
TU Corvi is a yellow-white hued
star in the southern
constellation of
Corvus . It is a dimly visible to the naked eye with an
apparent visual magnitude of 6.20.
[3] The distance to this star can be estimated from its annual
parallax shift of mas light years . Based upon measured changes in its
proper motion , it may be a close
binary system .
[12]
This is an
F-type main-sequence star with a
stellar classification of F0 V.
[4] Previously it had been classed as F0 III,
[13] matching an
evolved
giant star . It is a
Delta Scuti variable , varying by an
amplitude of 0.025 in
B magnitude with a period of 118 minutes.
[5]
[6] At the age of 786
[8] million years, it has a high rate of spin with a
projected rotational velocity of 103 km/s.
[10] The star has 1.45 times the
mass of the Sun and is radiating 12.6 times the
Sun's luminosity from its
photosphere at an
effective temperature of 7,132 K.
[8]
References
^
"MAST: Barbara A. Mikulski Archive for Space Telescopes" . Space Telescope Science Institute. Retrieved 8 December 2021 . ^
a b c d e f Vallenari, A.; et al. (Gaia Collaboration) (2022).
"Gaia Data Release 3. Summary of the content and survey properties" .
Astronomy & Astrophysics .
arXiv :
2208.00211 .
doi :
10.1051/0004-6361/202243940 . Gaia DR3 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 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 Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports . 61 (1): 80.
Bibcode :
2017ARep...61...80S .
doi :
10.1134/S1063772917010085 .
S2CID
125853869 . ^
a b Watson, Christopher (4 January 2010).
"TU Corvi" . The International Variable Star Index .
American Association of Variable Star Observers . Retrieved 21 July 2015 .
^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012). "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project". Astronomy & Astrophysics . 546 : 14.
arXiv :
1208.3048 .
Bibcode :
2012A&A...546A..61D .
doi :
10.1051/0004-6361/201219219 .
S2CID
59451347 . A61. ^
a b c d e f g 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 .
^ Gáspár, András; et al. (August 2016), "The Correlation between Metallicity and Debris Disk Mass", The Astrophysical Journal , 826 (2): 14,
arXiv :
1604.07403 ,
Bibcode :
2016ApJ...826..171G ,
doi :
10.3847/0004-637X/826/2/171 ,
S2CID
119241004 , 171 ^
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 .
^
"TU Crv" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 30 August 2018 .
^ Mason, Brian D.; et al. (1999).
"Speckle Interferometry of New and Problem HIPPARCOS Binaries" . The Astronomical Journal . 117 (4): 1890.
Bibcode :
1999AJ....117.1890M .
doi :
10.1086/300823 .
^ Cowley, A.; et al. (April 1969). "A study of the bright A stars. I. A catalogue of spectral classifications". Astronomical Journal . 74 : 375–406.
Bibcode :
1969AJ.....74..375C .
doi :
10.1086/110819 .
