59 Aurigae, often abbreviated as 59 Aur, is a star in the constellation Auriga. Its baseline apparent magnitude is 6.1,[3] meaning it can just barely be seen with the naked eye as a dim, yellow-white hued star. Based on parallax measurements, it is located about 483 light-years (148 parsecs) away from the Sun.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 53m 01.41099s[2] |
| Declination | +38° 52′ 08.9353″[2] |
| Apparent magnitude (V) | 6.099[3] |
| Characteristics | |
| Spectral type | F2V[4] |
| U−B color index | +0.14[5] |
| B−V color index | +0.38[5] |
| Variable type | δ Sct[6] |
| Astrometry | |
| Radial velocity (Rv) | 1.0±4.3[7] km/s |
| Proper motion (μ) | RA: −3.935[2] mas/yr Dec.: 6.454[2] mas/yr |
| Parallax (π) | 6.7493 ± 0.0501 mas[2] |
| Distance | 483 ± 4 ly (148 ± 1 pc) |
| Absolute magnitude (MV) | 0.23±0.12[8] |
| Details | |
| Mass | 2.49±0.08[9] M☉ |
| Radius | 5.73+0.29 −0.26[2] R☉ |
| Luminosity | 63.87±0.65[2] L☉ |
| Temperature | 6,808[8] K |
| Metallicity [Fe/H] | 0.18[8] dex |
| Rotational velocity (v sin i) | 165[9] km/s |
| Age | 700±100[8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This object is a Delta Scuti variable, meaning it varies in luminosity due to pulsations on its surface, ranging in magnitude from 5.94 down to 6.14 with a period of 0.154412 days (3.7 h).[6] For that reason, it has been given the variable star designation OX Aurigae. The star's spectrum matches that of an F-type main-sequence star and it has a spectral type of F2V.[4] It has 2.5[9] times the mass of the Sun and 5.7[2] times the Sun's radius. 59 Aurigae is thought to be around 700 million years old, and is radiating 64[2] times the Sun's luminosity from its photosphere an effective temperature of 6,808 K.[8]
References edit
- ^ Zhiping, Li (October 2000). "Complicated pulsation in the delta Scuti variable 59 Aurigae". Astronomy and Astrophysics. 362: 595–598. Bibcode:2000A&A...362..595L. Retrieved 31 October 2021.
- ^ a b c d e f g h i j 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.
- ^ a b Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- ^ a b Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement. 99: 135. Bibcode:1995ApJS...99..135A. doi:10.1086/192182.
- ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
- ^ a b Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1, 61 (1): 80–88, Bibcode:2017ARep...61...80S, doi:10.1134/S1063772917010085, S2CID 125853869.
- ^ 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.
- ^ a b c d e Nordström, B.; et al. (2004). "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs". Astronomy and Astrophysics. 418: 989–1019. arXiv:astro-ph/0405198. Bibcode:2004A&A...418..989N. doi:10.1051/0004-6361:20035959. S2CID 11027621.
- ^ a b c Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. A120.