60 Arietis

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60 Arietis
Observation data
Epoch J2000      Equinox J2000
Constellation Aries
Right ascension  03h 20m 25.56824s[1]
Declination +25° 39′ 45.9220″[1]
Apparent magnitude (V) 6.142[2]
Evolutionary stage giant
Spectral type K3 III[3]
B−V color index 1.253[2]
Radial velocity (Rv)+23.85±0.14[1] km/s
Proper motion (μ) RA: +12.102[1] mas/yr
Dec.: −83.013[1] mas/yr
Parallax (π)9.5718 ± 0.0488[1] mas
Distance341 ± 2 ly
(104.5 ± 0.5 pc)
Absolute magnitude (MV)1.34[4]
Mass1.36[2] M
[1] R
Luminosity49.34±0.35[1] L
Surface gravity (log g)2.4[5] cgs
Temperature4,449±34[2] K
Rotational velocity (v sin i)2.8[5] km/s
Age5.31[2] Gyr
Other designations
60 Ari, BD+25°536, HD 20663, HIP 15557, HR 1000, SAO 75875[6]
Database references

60 Arietis is a star in the northern constellation of Aries. 60 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 6.14,[2] making it a challenge to view with the naked eye. Based upon an annual parallax shift of 9.57±0.05 mas, this star is located 341 light-years (105 parsecs) away from the Sun. It is receding from the Earth with a heliocentric radial velocity of +24 km/s.[1]

This object is an aging giant star with a stellar classification of K3 III,[3] having exhausted the supply of hydrogen at its core and expanded to 11[1] times the Sun's radius, it is 5.3[2] billion years old with 1.36[2] times the mass of the Sun. The star shines with 49[1] times the Sun's luminosity; this energy is being radiated from the photosphere at an effective temperature of 4,449 K,[2] giving it the orange-hued glow of a K-type star.


  1. ^ a b c d e f g h i j k 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.
  2. ^ a b c d e f g h i Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88.
  3. ^ a b Adams, Walter S.; et al. (1935), "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars", Astrophysical Journal, 81: 187, Bibcode:1935ApJ....81..187A, doi:10.1086/143628.
  4. ^ 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.
  5. ^ a b Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
  6. ^ "60 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-04.

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