Astronomy:57 Tauri

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Short description: Variable star in the constellation Taurus
57 Tauri
V483TauLightCurve.png
A light curve for V483 Tauri, plotted from TESS data.[1]
Observation data
Equinox J2000.0]] (ICRS)
Constellation Taurus
Right ascension  04h 19m 57.70457s[2]
Declination +14° 02′ 06.7322″[2]
Apparent magnitude (V) 5.55 - 5.59[3]
Characteristics
Spectral type F0 IV[4]
B−V color index 0.283[5]
Variable type δ Scuti[3]
Astrometry
Proper motion (μ) RA: 115.369±0.078[2] mas/yr
Dec.: −18.825±0.052[2] mas/yr
Parallax (π)21.9777 ± 0.0621[2] mas
Distance148.4 ± 0.4 ly
(45.5 ± 0.1 pc)
Absolute magnitude (MV)5.56[6]
Orbit[7]
Primaryδ Scuti star
Period (P)2.4860±0.0017 d
Eccentricity (e)0.028±0.010
Longitude of the node (Ω)140.5±20.4°
Periastron epoch (T)2451164.968±0.144
Semi-amplitude (K1)
(primary)		29.906±0.316 km/s
Details
Mass1.6[2] M☉
Radius2.0[2] R☉
Luminosity9.8[2] L☉
Surface gravity (log g)4.00[2] cgs
Temperature7,258[2] K
Metallicity [Fe/H]0.051[8] dex
Rotation0.905 d[9]
Rotational velocity (v sin i)97.6[9] km/s
Age1.2[2] Gyr
Other designations
h Tauri, HD 27397, V0483 Tauri, HR 1351, HIP 20219, SAO 93872, BD+13 663[10]
Database references
SIMBADdata

57 Tauri, also known as h Tauri and V483 Tauri, is a star 148 light years from the Earth, in the constellation Taurus.[2] It is a 5th magnitude star, so it will be visible to the naked eye of an observer located far from city lights.[3] 57 Tauri is a member of the Hyades star cluster.[11] It is a Delta Scuti variable star, whose brightness changes slightly, ranging from magnitude 5.55 to 5.59.[3]

In 1908, Lewis Boss listed 57 Tauri as a member of the Hyades cluster based upon its proper motion agreeing with the motions of other cluster members.[12] Its membership in the cluster was firmly established forty-four years later by Hendrik van Bueren, using both proper motion and radial velocity.[13] 57 Tauri is located 10.8 light years from the core of the Hyades cluster.[14]

Robert Millis discovered that 57 Tauri is a variable star, in 1967. He reported that the amplitude varied by 0.02 magnitudes with a period of 1.5 hours.[15] In 1972, it was given the variable star designation V483 Tauri.[16] A year 2000 study of 57 Tauri, based on 54 nights of photometric data, identified twelve pulsation frequencies ranging in period from 58.6 minutes to 6.17 days.[11]

In 1999, Anthony Kaye discovered that 57 Tauri is a spectroscopic binary by examining 139 high signal-to-noise spectra obtained at Kitt Peak.[7]

References

  1. ↑ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html. 
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 3.3 Samus', N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports 61 (1): 80. doi:10.1134/S1063772917010085. Bibcode: 2017ARep...61...80S. 
  4. ↑ Gray, R. O.; Napier, M. G.; Winkler, L. I. (April 2001). "The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars". The Astronomical Journal 121 (4): 2148–2158. doi:10.1086/319956. Bibcode: 2001AJ....121.2148G. 
  5. ↑ Böhm-Vitense, Erika; Robinson, Richard; Carpenter, Kenneth; Mena-Werth, Jose (April 2002). "What Is Happening at Spectral Type F5 in Hyades F Stars?". The Astrophysical Journal 569 (2): 941–963. doi:10.1086/339395. Bibcode: 2002ApJ...569..941B. 
  6. ↑ Cesetti, M.; Pizzella, A.; Ivanov, V. D.; Morelli, L.; Corsini, E. M.; Dalla Bontà, E. (2013). "The Infrared Telescope Facility (IRTF) spectral library:. Spectral diagnostics for cool stars". Astronomy and Astrophysics 549. doi:10.1051/0004-6361/201219078. Bibcode: 2013A&A...549A.129C. 
  7. ↑ 7.0 7.1 Kaye, A. B. (April 1999). "57 Tau = HD 27397 - A Spectroscopic Binary". Information Bulletin on Variable Stars 4697: 1. Bibcode: 1999IBVS.4697....1K. https://ibvs.konkoly.hu/pub/ibvs/4601/4697.pdf. Retrieved 4 February 2023. 
  8. ↑ Huber, Daniel; Bryson, Stephen T.; Haas, Michael R.; Barclay, Thomas; Barentsen, Geert; Howell, Steve B.; Sharma, Sanjib; Stello, Dennis et al. (2016). "The K2 Ecliptic Plane Input Catalog (Epic) and Stellar Classifications of 138,600 Targets in Campaigns 1–8". The Astrophysical Journal Supplement Series 224 (1): 2. doi:10.3847/0067-0049/224/1/2. Bibcode: 2016ApJS..224....2H. 
  9. ↑ 9.0 9.1 van Saders, Jennifer L.; Pinsonneault, Marc H. (October 2013). "Fast Star, Slow Star; Old Star, Young Star: Subgiant Rotation as a Population and Stellar Physics Diagnostic". The Astrophysical Journal 776 (2): 20. doi:10.1088/0004-637X/776/2/67. 67. Bibcode: 2013ApJ...776...67V. 
  10. ↑ "h Tau -- delta Sct Variable". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=h+Tau+--+delta+Sct+Variable. 
  11. ↑ 11.0 11.1 Paparó, M.; Rodriguez, E.; McNamara, B. J.; Kolláth, Z.; Rolland, A.; Gonzalez-Bedolla, S. F.; Jiang, Shi-yang; Li, Zhi-ping (February 2000). "A comprehensive study of the delta Scuti star, 57 Tauri (= HR 1351) in the Hyades cluster". Astronomy and Astrophysics Supplement 142: 1–11. doi:10.1051/aas:2000131. Bibcode: 2000A&AS..142....1P. 
  12. ↑ Boss, Lewis J. (September 1908). "Convergent of a moving cluster in Taurus". Astronomical Journal 26: 31–36. doi:10.1086/103802. Bibcode: 1908AJ.....26...31B. 
  13. ↑ van Bueren, H. G. (May 1952). "On the structure of the Hyades cluster". Bulletin of the Astronomical Institutes of the Netherlands 11 (432): 385–402. Bibcode: 1952BAN....11..385V. 
  14. ↑ Freund, S.; Robrade, J.; Schneider, P. C.; Schmitt, J. H. M. M. (August 2020). "Updated X-ray view of the Hyades cluster". Astronomy and Astrophysics 640: A66. doi:10.1051/0004-6361/201937304. Bibcode: 2020A&A...640A..66F. 
  15. ↑ Millis, Robert L. (1967). An investigation of the Delta Scuti stars (Ph.D. Thesis). University of Wisconsin. 
  16. ↑ Kukarkin, B. V.; Kholopov, P. N.; Kukarkina, N. P.; Perova, N. B. (September 1972). "58th Name-List of Variable Stars". Information Bulletin on Variable Stars 717 (1): 1. Bibcode: 1972IBVS..717....1K. https://ibvs.konkoly.hu/pub/ibvs/0701/0717.pdf. Retrieved 3 February 2023. 



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