Observation data Epoch J2000 Equinox J2000 | |
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Constellation | Aquila |
Right ascension | 20 04 23.15129 |
Declination | −00° 42′ 33.5147″ |
Apparent magnitude (V) | 5.67 |
Characteristics | |
Spectral type | K4 III |
B−V color index | 1.301±0.005 |
Astrometry | |
Radial velocity (Rv) | +0.2±2.9 km/s |
Proper motion (μ) | RA: −3.923 mas/yr Dec.: –117.824 mas/yr |
Parallax (π) | 7.7081 ± 0.1300 mas |
Distance | 423 ± 7 ly (130 ± 2 pc) |
Absolute magnitude (MV) | 0.14 |
Details | |
Mass | 0.89±0.25 M☉ |
Radius | 22.89+0.94 −0.41 R☉ |
Luminosity | 153±3 L☉ |
Surface gravity (log g) | 1.69±0.11 cgs |
Temperature | 4,246±92 K |
Metallicity | −0.54±0.05 dex |
Age | 11.2+1.1 −1.0 Gyr |
Other designations | |
62 Aql, BD−01° 3887, GC 27832, HD 190299, HIP 98844, HR 7667, SAO 144045 | |
Database references | |
SIMBAD | data |
62 Aquilae is a single star located about 427 light years away from the Sun in the equatorial constellation of Aquila. 62 Aquilae is its Flamsteed designation. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.67.
This is an aging giant star with a stellar classification of K4 III, having exhausted the supply of hydrogen at its core and expanded to 23 times the girth of the Sun. It is 11.2 billion years old with 0.89 times the Sun's mass. The star is radiating 153 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,246 K.
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.
- ^ 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.
- ^ Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Bibcode:1999MSS...C05....0H.
- Gontcharov, G. A. (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, S2CID 119231169.
- ^ Feuillet, Diane K.; et al. (2016), "Determining Ages of APOGEE Giants with Known Distances", The Astrophysical Journal, 817 (1): 40, arXiv:1511.04088, Bibcode:2016ApJ...817...40F, doi:10.3847/0004-637X/817/1/40, S2CID 118675933.
- "62 Aql". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 1, 2018.
- Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
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