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60 Aquarii

From Wikipedia, the free encyclopedia

60 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 34m 02.91361s[1]
Declination –01° 34′ 27.3638″[1]
Apparent magnitude (V) 5.89[2]
Characteristics
Spectral type G6 III[3]
U−B color index +0.73[2]
B−V color index +1.00[2]
Astrometry
Radial velocity (Rv)–8[4] km/s
Proper motion (μ) RA: +40.30[5] mas/yr
Dec.: –35.92[5] mas/yr
Parallax (π)8.6909 ± 0.1113 mas[1]
Distance375 ± 5 ly
(115 ± 1 pc)
Absolute magnitude (MV)+0.14[3]
Details
Mass2.77[3] M☉
Radius11.13+0.26
−0.16[1] R☉
Luminosity64.7±1.0[1] L☉
Surface gravity (log g)2.88[6] cgs
Temperature4,820[6] K
Metallicity [Fe/H]–0.24[6] dex
Age437[3] Myr
Other designations
60 Aqr, BD−02°5781, HD 213789, HIP 111394, HR 8590, SAO 146160, WDS J22340-0134[7]
Database references
SIMBADdata

60 Aquarii is a star located 375 light years away from the Sun in the equatorial constellation of Aquarius. 60 Aquarii is its Flamsteed designation. It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of 5.89.[2] The star is moving closer to the Earth with a heliocentric radial velocity of –8 km/s.[4]

This is an aging giant star with a stellar classification of G6 III,[3] most likely on the horizontal branch.[8] It is 437[3] million years old with 2.77[3] times the mass of the Sun. Having exhausted the hydrogen at its core, this star has evolved away from the main sequence and expanded to 11[1] times the Sun's radius. It is radiating 65[1] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,820 K.[6]

A magnitude 11.54 companion star is located at an angular separation of 100.90″ along a position angle of 299°, as of 2013.[9]

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Transcription

References

  1. ^ a b c d e f g 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 Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars". Communications of the Lunar and Planetary Laboratory. 4 (99): 99. Bibcode:1966CoLPL...4...99J.
  3. ^ a b c d e f g Takeda, Yoichi; et al. (August 2008), "Stellar Parameters and Elemental Abundances of Late-G Giants", Publications of the Astronomical Society of Japan, 60 (4): 781–802, arXiv:0805.2434, Bibcode:2008PASJ...60..781T, doi:10.1093/pasj/60.4.781, S2CID 16258166.
  4. ^ a b Wilson, Ralph Elmer (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication, Washington: Carnegie Institution of Washington, Bibcode:1953GCRV..C......0W.
  5. ^ a b 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
  6. ^ a b c d McWilliam, Andrew (December 1990), "High-resolution spectroscopic survey of 671 GK giants", Astrophysical Journal Supplement Series (PDF), 74: 1075–1128, Bibcode:1990ApJS...74.1075M, doi:10.1086/191527.
  7. ^ "60 Aqr -- Star in double system", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2012-07-13.
  8. ^ Stock, Stephan; et al. (August 2018), "Precise radial velocities of giant stars. X. Bayesian stellar parameters and evolutionary stages for 372 giant stars from the Lick planet search", Astronomy & Astrophysics, 616: 15, arXiv:1805.04094, Bibcode:2018A&A...616A..33S, doi:10.1051/0004-6361/201833111, S2CID 119361866, A33.
  9. ^ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920

External links

This page was last edited on 13 August 2023, at 19:59
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