Astronomy:59 Aurigae

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Short description: Star in the constellation Auriga
59 Aurigae
59AurLightCurve.png
Four visual band light curves for 59 Aurigae, adapted from Zhiping (2000)[1]
Observation data
Equinox J2000.0]] (ICRS)
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[2] mas
Distance483 ± 4 ly
(148 ± 1 pc)
Absolute magnitude (MV)0.23±0.12[8]
Details
Mass2.49±0.08[9] M
Radius5.73+0.29
−0.26
[2] R
Luminosity63.87±0.65[2] L
Temperature6,808[8] K
Metallicity [Fe/H]0.18[8] dex
Rotational velocity (v sin i)165[9] km/s
Age700±100[8] Myr
Other designations
59 Aur, OX Aur, BD+39°1771, GC 8993, HD 50018, HIP 33041, HR 2539, SAO 59571, PPM 72197, ADS 5534, CCDM J06530+3852, WDS J06530+3852, TYC 2942-2005-1, GSC 02942-02005
Database references
SIMBADdata

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]

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

  1. Zhiping, Li (October 2000). "Complicated pulsation in the delta Scuti variable 59 Aurigae". Astronomy and Astrophysics 362: 595–598. Bibcode2000A&A...362..595L. https://ui.adsabs.harvard.edu/abs/2000A&A...362..595L. Retrieved 31 October 2021. 
  2. Jump up to: 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 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. Bibcode2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. Jump up to: 3.0 3.1 Høg, E. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27–L30. Bibcode2000A&A...355L..27H. 
  4. Jump up to: 4.0 4.1 Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement 99: 135. doi:10.1086/192182. Bibcode1995ApJS...99..135A. 
  5. Jump up to: 5.0 5.1 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode1986EgUBV........0M. 
  6. Jump up to: 6.0 6.1 Samus, N. N. et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1 61 (1): 80–88, doi:10.1134/S1063772917010085, Bibcode2017ARep...61...80S. 
  7. 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. Bibcode2006AstL...32..759G. 
  8. Jump up to: 8.0 8.1 8.2 8.3 8.4 Nordström, B. (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. doi:10.1051/0004-6361:20035959. Bibcode2004A&A...418..989N. 
  9. Jump up to: 9.0 9.1 9.2 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy & Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. A120. Bibcode2012A&A...537A.120Z. 

External links