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Zeta Arietis

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ζぜーた Arietis
Location of ζぜーた Arietis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aries
Right ascension 03h 14m 54.09143s[1]
Declination +21° 02′ 39.9952″[1]
Apparent magnitude (V) +4.89[2]
Characteristics
Spectral type A1 V[3]
U−B color index –0.01[2]
B−V color index –0.02[2]
Astrometry
Radial velocity (Rv)+7.0[4] km/s
Proper motion (μみゅー) RA: –19.930[1] mas/yr
Dec.: –72.900[1] mas/yr
Parallax (πぱい)12.7708 ± 0.3734 mas[1]
Distance255 ± 7 ly
(78 ± 2 pc)
Absolute magnitude (MV)+0.35[5]
Details
Mass2.66±0.07[6] M☉
Luminosity73[5] L☉
Temperature9,500[7] K
Rotational velocity (v sin i)133[8] km/s
Other designations
ζぜーた Ari, 58 Arietis, BD+20 527, FK5 1089, HD 20150, HIP 15110, HR 972, SAO 75810[9]
Database references
SIMBADdata

Zeta Arietis, Latinized from ζぜーた Arietis, is a star in the northern constellation of Aries. It is dimly visible to the naked eye with an apparent visual magnitude of +4.89.[2] Based upon an annual parallax shift of 12.77 mas,[1] the distance to this star is 255 ± 7 light-years (78 ± 2 parsecs). This is an A-type main sequence star with a stellar classification of A1 V.[3] It has a high rate of rotation with a projected rotational velocity of 133 km/s.[8] The star is shining at an effective temperature of 9,500 K,[7] giving it the characteristic white-hued glow of an A-type star.[10]

Name[edit]

This star, along with δでるた Ari, εいぷしろん Ari, πぱい Ari, and ρろー3 Ari, were Al Bīrūnī's Al Buṭain (ألبطين), the dual of Al Baṭn, the Belly.[11] According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δでるた Ari as Botein, πぱい Ari as Al Buṭain I, ρろー3 Ari as Al Buṭain II, εいぷしろん Ari as Al Buṭain III dan ζぜーた Ari as Al Buṭain IV.[12]

In Chinese, 天てん陰かげ (Tiān Yīn), meaning Yin Force, refers to an asterism consisting of ζぜーた Arietis, 63 Arietis, δでるた Arietis, τたう Arietis and 65 Arietis.[13] Consequently, the Chinese name for ζぜーた Arietis itself is 天てん陰かげ二に (Lóu Su èr, English: the Second Star of Yin Force.)[14]

References[edit]

  1. ^ a b c d e f 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.
  2. ^ a b c d Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
  3. ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
  4. ^ Wielen, R.; et al. (1999), "Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions", Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg, 35 (35), Astronomisches Rechen-Institut Heidelberg: 1, Bibcode:1999VeARI..35....1W.
  5. ^ a b 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.
  6. ^ 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.
  7. ^ a b Theodossiou, E.; Danezis, E. (September 1991), "The stellar temperature scale for stars of spectral types from O8 to F6 and the standard deviation of the MK spectral classification", Astrophysics and Space Science, 183 (1): 91–115, Bibcode:1991Ap&SS.183...91T, doi:10.1007/BF00643019, S2CID 119703222.
  8. ^ a b Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298
  9. ^ "zet Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-08-04.
  10. ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on 2013-12-03, retrieved 2012-01-16
  11. ^ Allen, R. H. (1963), Star Names: Their Lore and Meaning (Reprint ed.), New York, NY: Dover Publications Inc, p. 83, ISBN 0-486-21079-0, retrieved 2010-12-12.
  12. ^ Rhoads, Jack W. (November 15, 1971), Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars (PDF), Jet Propulsion Laboratory, California Institute of Technology.
  13. ^ (in Chinese) 中國ちゅうごく星座せいざ神話しんわ, written by 陳ひね久金ひさがね. Published by 台灣たいわん書房しょぼう出版しゅっぱん有限ゆうげん公司こうし, 2005, ISBN 978-986-7332-25-7.
  14. ^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文てんもん教育きょういく資し訊網 2006 年ねん 5 月がつ 22 日にち
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