Star in the constellation Aries
51 Arietis is a star in the northern constellation of Aries . 51 Arietis is the Flamsteed designation . It is a dim, yellow-hued star – a challenge to view with the naked eye, having an apparent visual magnitude of 6.6. Based upon parallax measurements, the star is located at an estimated distance of 67.3 light-years (20.6 parsecs ) from the Sun. It is receding from the Earth with a heliocentric radial velocity of +9.5 km/s, and is a member of the IC 2391 moving group .
This is an ordinary G-type main sequence star with a stellar classification of G8 V. Similar to the Sun, it has 1.04 times the mass and 0.99 times the Sun's radius. It is 1.4 billion years old with a leisurely rotation rate, showing a projected rotational velocity of 4 km/s. The atmospheric metallicity is higher than solar. The star radiates 92% of the Sun's luminosity from its photosphere at an effective temperature of 5,666 K. This heat gives it the golden-hued glow of a G-type star .
References
^ 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 .
^ Fuhrmann, Klaus (February 2008), "Nearby stars of the Galactic disc and halo - IV", Monthly Notices of the Royal Astronomical Society 384 (1): 173–224, 176, Bibcode :2008MNRAS.384..173F , doi :10.1111/j.1365-2966.2007.12671.x .
^ Montes, D.; et al. (November 2001), "Late-type members of young stellar kinematic groups - I. Single stars", Monthly Notices of the Royal Astronomical Society 328 (1): 45–63, arXiv :astro-ph/0106537 , Bibcode :2001MNRAS.328...45M , doi :10.1046/j.1365-8711.2001.04781.x , S2CID 55727428 .
^ Martínez-Arnáiz, R.; et al. (September 2010), "Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter" (PDF), Astronomy and Astrophysics , 520 : A79, arXiv :1002.4391 , Bibcode :2010A&A...520A..79M , doi :10.1051/0004-6361/200913725 , S2CID 43455849 , archived from the original (PDF) on 2017-09-22, retrieved 2018-11-04.
^ 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 .
^ Takeda, Yoichi (April 2007), "Fundamental Parameters and Elemental Abundances of 160 F-G-K Stars Based on OAO Spectrum Database", Publications of the Astronomical Society of Japan , 59 (2): 335–356, Bibcode :2007PASJ...59..335T , doi :10.1093/pasj/59.2.335 .
"LTT 10989 -- High proper-motion Star" , SIMBAD Astronomical Database , Centre de Données astronomiques de Strasbourg , retrieved 2012-08-16.van Leeuwen, F. (November 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 .
"The Colour of Stars" , Australia Telescope, Outreach and Education , Commonwealth Scientific and Industrial Research Organisation , December 21, 2004, archived from the original on March 18, 2012, retrieved 2012-01-16
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