64 Aquarii
| Observation data EpochJ2000EquinoxJ2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h39m16.03872s[1] |
| Declination | −10° 01′ 40.1750″[1] |
| Apparent magnitude(V) | 6.93[2] |
| Characteristics | |
| Spectral type | G2/3 IV/V[3] |
| B−Vcolor index | 0.619±0.009[2] |
| Astrometry | |
| Radial velocity(Rv) | +10.7±0.5[4]km/s |
| Proper motion(μ) | RA:−60.940[1]mas/yr Dec.:+3.803[1]mas/yr |
| Parallax(π) | 10.4508 ± 0.1554mas[1] |
| Distance | 312 ± 5ly (96 ± 1pc) |
| Absolute magnitude(MV) | 2.75[2] |
| Details[5] | |
| Mass | 1.45±0.06M☉ |
| Radius | 2.78±0.07R☉ |
| Luminosity | 13.133±0.225[1]L☉ |
| Surface gravity(logg) | 3.708±0.013cgs |
| Temperature | 5,926±97K |
| Metallicity[Fe/H] | −0.02±0.11dex |
| Rotational velocity(vsini) | 8.75 km/s |
| Age | 2.63±0.26Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
64 Aquariiis astarlocated 312light yearsaway from the Sun in thezodiacconstellationofAquarius.64 Aquariiis itsFlamsteed designation.With anapparent visual magnitudeof 6.93,[2]it is too faint to be readily visible to the naked eye. The star is moving further from the Earth with a heliocentricradial velocityof +11 km/s.[4]
Thestellar classificationfor this star is G2/3 IV/V,[3]which indicates thespectrumdisplays mixed traits of aG-type main-sequence starand a moreevolvedsubgiant star.It is 2.6 billion years old and is spinning with aprojected rotational velocityof 8.75 km/s. The star has 1.45 times themass of the Sunand 2.8 times theSun's radius.[5]It is radiating 13[1]times theluminosity of the Sunfrom itsphotosphereat aneffective temperatureof 5,926 K.[5]
References
[edit]- ^abcdefgBrown, A. G. A.;et al. (Gaia collaboration) (August 2018)."GaiaData 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 sourceatVizieR.
- ^abcdAnderson, 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,S2CID119257644.
- ^abHouk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars",Michigan Spectral Survey,5,Bibcode:1999MSS...C05....0H.
- ^abGontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system",Astronomy Letters,32(11): 759–771,arXiv:1606.08053,Bibcode:2006AstL...32..759G,doi:10.1134/S1063773706110065,S2CID119231169.
- ^abcLund, Mikkel N.; et al. (December 2016), "Asteroseismic Properties of Solar-type Stars Observed with the NASA K2 Mission: Results from Campaigns 1-3 and Prospects for Future Observations",Publications of the Astronomical Society of the Pacific,128(970): 124204,arXiv:1608.07292,Bibcode:2016PASP..128l4204L,doi:10.1088/1538-3873/128/970/124204,S2CID119246395.
- ^"64 Aqr".SIMBAD.Centre de données astronomiques de Strasbourg.RetrievedOctober 24,2018.
