37 Tauri

In today's world, 37 Tauri continues to be a topic of interest, debate and reflection for many people. Its relevance has endured over time, and its impact can be seen in different contexts and situations. From its influence on society to its importance in culture, 37 Tauri has left a significant mark that deserves to be explored and analyzed. Throughout this article, we will closely examine the role and relevance of 37 Tauri, with the aim of delving deeper into its meaning and understanding its impact on the modern world.

This article is about A1 Tauri. For other stars with this Bayer designation, see A Tauri.
37 Tauri
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 04m 41.71484s[1]
Declination +22° 04′ 54.9243″[1]
Apparent magnitude (V) 4.36[2]
Characteristics
Spectral type K0 III-IIIb[3]
U−B color index 0.95[4]
B−V color index 1.07[5]
R−I color index 0.53[4]
Astrometry
Radial velocity (Rv)+9.52±0.11[6] km/s
Proper motion (μ) RA: +90.53[1] mas/yr
Dec.: −59.47[1] mas/yr
Parallax (π)17.43±0.21 mas[1]
Distance187 ± 2 ly
(57.4 ± 0.7 pc)
Absolute magnitude (MV)0.57[2]
Details
Mass1.99[5] M☉
Radius10.15±0.69[7] R☉
Luminosity60±6[7] L☉
Surface gravity (log g)2.77[7] cgs
Temperature4,732±26[5] K
Metallicity +0.01[7] dex
Rotational velocity (v sin i)2.8[6] km/s
Age1.39[5] Gyr
Other designations
37 Tau, BD+21° 585, FK5 1112, HD 25604, HIP 19038, HR 1256, SAO 76430, WDS J04047+2205A[8]
Database references
SIMBADdata

37 Tauri is a single,[9] orange-hued star in the zodiac constellation of Taurus. It can be seen with the naked eye, having an apparent visual magnitude of 4.36.[2] A magnitude 10.01 visual companion has an angular separation of 134.30″ on a position angle of 138.6°, as of 2003.[10] Based on an annual parallax shift of 17.43±0.21 mas,[1] 37 Tauri is about 187 light years away. It is moving further from the Sun with a heliocentric radial velocity of 9.5 km/s.[6]

This is an evolved K-type giant star with a stellar classification of K0 III-IIIb.[3] At the age of 1.39[5] billion years, it has become a red clump giant, indicating that it is generating energy through helium fusion at its core.[11] The star has around double the mass of the Sun and has expanded to 10[7] times the Sun's radius. It is radiating roughly 60[7] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,732 K.[5]

Chinese astronomy

In Chinese astronomy, 37 Tauri is called 月, Pinyin: Yuè, meaning Moon, because this star is marking itself and stand alone in Moon asterism, Hairy Head mansion (see : Chinese constellation).[12]

References

  1. ^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
  2. ^ a b c 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.
  3. ^ a b Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
  4. ^ a b Ducati, J. R. (2002), "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system", CDS/ADC Collection of Electronic Catalogues, 2237, Bibcode:2002yCat.2237....0D.
  5. ^ a b c d e f Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88, S2CID 118505114.
  6. ^ a b c Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209, S2CID 121883397.
  7. ^ a b c d e f Piau, L.; et al. (2010), "Surface convection and red-giants radii measurements", Astronomy and Astrophysics, 526: 12, arXiv:1010.3649, Bibcode:2011A&A...526A.100P, doi:10.1051/0004-6361/201014442, S2CID 118533297, A100.
  8. ^ "37 Tau". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-03-22.
  9. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  10. ^ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920
  11. ^ Puzeras, E.; et al. (October 2010), "High-resolution spectroscopic study of red clump stars in the Galaxy: iron-group elements", Monthly Notices of the Royal Astronomical Society, 408 (2): 1225–1232, arXiv:1006.3857, Bibcode:2010MNRAS.408.1225P, doi:10.1111/j.1365-2966.2010.17195.x, S2CID 44228180.
  12. ^ Ian Ridpath's Star Tales - Taurus the Bull