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Star in the constellation Cancer
34 Cancri is a
star in the
zodiac
constellation of
Cancer , located about 568
light years away from the Sun.
[1] It is a challenge to view with the naked even under good viewing conditions, having an
apparent visual magnitude of 6.48.
[2] At the distance of this star, its visual magnitude is diminished by an
extinction of 0.14 due to
interstellar dust .
[8]
This is an
A-type main-sequence star with a
stellar classification of A1 V.
[3] It is a
chemically peculiar star , possibly of the magnetic-type (CP2), showing an abnormal abundance of strontium.
[9] The star is an estimated 336
[2] million years old with only a moderate
projected rotational velocity of 18 km/s.
[6] It has an estimated 2.7
[6] times the
mass of the Sun and about 2.7
[7] times the Sun's radius. The star is radiating 70
[2] times the
Sun's luminosity from its
photosphere at an
effective temperature of 9,661 K.
[6]
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
e
f
g
h 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 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 .
^
a
b
"34 Cnc" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2019-02-28 .
^ 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 Zorec, J.; et al. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy and Astrophysics , 537 : A120,
arXiv :
1201.2052 ,
Bibcode :
2012A&A...537A.120Z ,
doi :
10.1051/0004-6361/201117691 ,
S2CID
55586789 .
^
a
b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics , 367 (Third ed.): 521–524,
arXiv :
astro-ph/0012289 ,
Bibcode :
2001A&A...367..521P ,
doi :
10.1051/0004-6361:20000451 ,
S2CID
425754 .
^ Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters , 38 (11): 694–706,
arXiv :
1606.09028 ,
Bibcode :
2012AstL...38..694G ,
doi :
10.1134/S1063773712110035 ,
S2CID
119108982 .
^ Wraight, K. T.; et al. (February 2012), "A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars", Monthly Notices of the Royal Astronomical Society , 420 (1): 757–772,
arXiv :
1110.6283 ,
Bibcode :
2012MNRAS.420..757W ,
doi :
10.1111/j.1365-2966.2011.20090.x ,
S2CID
14811051 .