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Star in the constellation Eridanus
14 Eridani is a
star in the
equatorial
Eridanus
constellation . It has an
apparent visual magnitude of 6.143
[2] and is moving closer to the Sun with a
radial velocity of around −5 km/s.
[4] The measured annual
parallax shift is mas
[1] which provides an estimated distance of about 121
light years .
Proper motion studies indicate that this is an
astrometric binary .
[9]
[10]
The visible component has a
stellar classification of F5 V Fe−0.7 CH−0.5 ,
[3] which indicates it has the
spectrum of an
F-type main-sequence star with mild underabundances of iron and
methylidyne . It is 1.4
[6] billion years old with 1.3
[6] times the
mass of the Sun and 1.5
[1] times the
Sun's radius . The star is radiating 3.87
[1] times the
luminosity of the Sun from its
photosphere at an
effective temperature of 6,719 K.
[6] The system has been detected as a source of
X-ray emission .
[11]
References
^
a b c d e f g h i j
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 Høg, E.; et al. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics , 355 : L27,
Bibcode :
2000A&A...355L..27H ,
doi :
10.1888/0333750888/2862 . ^
a b Gray, R. O.; et al. (2006), "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample", The Astronomical Journal , 132 (1): 161–170,
arXiv :
astro-ph/0603770 ,
Bibcode :
2006AJ....132..161G ,
doi :
10.1086/504637 ,
S2CID
119476992 . ^
a b 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.
^ 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 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 .
^ Casagrande, L.; et al. (June 2011), "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey", Astronomy and Astrophysics , 530 : A138,
arXiv :
1103.4651 ,
Bibcode :
2011A&A...530A.138C ,
doi :
10.1051/0004-6361/201016276 ,
S2CID
56118016 .
^
"14 Eri" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2018-01-27 .
^ Makarov, V. V.; Kaplan, G. H. (May 2005), "Statistical Constraints for Astrometric Binaries with Nonlinear Motion", The Astronomical Journal , 129 (5): 2420–2427,
Bibcode :
2005AJ....129.2420M ,
doi :
10.1086/429590 .
^ Frankowski, A.; et al. (March 2007), "Proper-motion binaries in the Hipparcos catalogue. Comparison with radial velocity data", Astronomy and Astrophysics , 464 (1): 377–392,
arXiv :
astro-ph/0612449 ,
Bibcode :
2007A&A...464..377F ,
doi :
10.1051/0004-6361:20065526 ,
S2CID
14010423 .
^ Huensch, M.; et al. (October 1998), "The ROSAT all-sky survey catalogue of optically bright main-sequence stars and subgiant stars", Astronomy and Astrophysics Supplement , 132 (2): 155−171,
Bibcode :
1998A&AS..132..155H ,
doi :
10.1051/aas:1998287 .
