Astronomy:62 Aquilae
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Short description: Star in the constellation Aquila
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aquila |
| Right ascension | 20h 04m 23.15129s[1] |
| Declination | −00° 42′ 33.5147″[1] |
| Apparent magnitude (V) | 5.67[2] |
| Characteristics | |
| Spectral type | K4 III[3] |
| B−V color index | 1.301±0.005[2] |
| Astrometry | |
| Radial velocity (Rv) | +0.2±2.9[4] km/s |
| Proper motion (μ) | RA: −3.923[1] mas/yr Dec.: –117.824[1] mas/yr |
| Parallax (π) | 7.7081 ± 0.1300[1] mas |
| Distance | 423 ± 7 ly (130 ± 2 pc) |
| Absolute magnitude (MV) | 0.14[2] |
| Details[5] | |
| Mass | 0.89±0.25 M☉ |
| Radius | 22.89+0.94 −0.41[1] R☉ |
| Luminosity | 153±3[1] L☉ |
| Surface gravity (log g) | 1.69±0.11 cgs |
| Temperature | 4,246±92 K |
| Metallicity [Fe/H] | −0.54±0.05 dex |
| Age | 11.2+1.1 −1.0 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
62 Aquilae is a single[7] 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.[2]
This is an aging giant star with a stellar classification of K4 III,[3] having exhausted the supply of hydrogen at its core and expanded to 23[1] times the girth of the Sun. It is 11.2 billion years old with 0.89 times the Sun's mass.[5] The star is radiating 153[1] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,246 K.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 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, doi:10.1134/S1063773706110065, Bibcode: 2006AstL...32..759G.
- ↑ 5.0 5.1 5.2 Feuillet, Diane K. et al. (2016), "Determining Ages of APOGEE Giants with Known Distances", The Astrophysical Journal 817 (1): 40, doi:10.3847/0004-637X/817/1/40, Bibcode: 2016ApJ...817...40F.
- ↑ "62 Aql". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=62+Aql.
- ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
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