Star in the constellation Aries
VZ Arietis is single,[ 10] white-hued star in the northernzodiac constellation ofAries . Varying between magnitudes 5.82 and 5.89,[ 3] the star can be seen with thenaked eye in dark,unpolluted areas. Based upon an annualparallax shift of 5.8 mas ,[ 2] it is located 560 light-years from the Sun. It is moving further away with a heliocentricradial velocity of +14 km/s.[ 6] The star was formerly known as16 Trianguli , but as the star is no longer in the constellationTriangulum , this designation has fallen out of use.[ 11]
In 1984, the Czechoslovak astronomer Juraj Zverko announced that the star, then called HR 830, is avariable star .[ 12] It was given itsvariable star designation , VZ Arietis, in 1987.[ 13]
This is achemically peculiar star [ 4] of type CP2 (Ap star ),[ 14] showing an anomalous abundance of silicon in itsspectrum .[ 12] It has astellar classification of A0 V,[ 5] which indicates this is anA-type main-sequence star that currently fusing hydrogen into helium in its core. This is anAlpha2 Canum Venaticorum variable [ 14] with 2.7[ 4] times themass of the Sun and about 3.1[ 7] times theSun's radius . It is radiating 79 times theSun's luminosity from itsphotosphere at aneffective temperature of 10,304 K.[ 4]
^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 . XHIP record for this object atVizieR .^a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties" .Astronomy and Astrophysics .674 : A1.arXiv :2208.00211 .Bibcode :2023A&A...674A...1G .doi :10.1051/0004-6361/202243940 .S2CID 244398875 . Gaia DR3 record for this source atVizieR .^a b c VSX (4 January 2010)."VZ Arietis" .AAVSO Website .American Association of Variable Star Observers . Retrieved15 June 2014 . ^a b c d e f g h 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 . ^a b Cowley, A.; Cowley, C.; Jaschek, M.; Jaschek, C. (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 . ^a b de Bruijne, J. H. J.; Eilers, A.-C. (October 2012). "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project".Astronomy & Astrophysics .546 : 14.arXiv :1208.3048 .Bibcode :2012A&A...546A..61D .doi :10.1051/0004-6361/201219219 .S2CID 59451347 . A61. ^a b Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)".Astronomy & Astrophysics .367 (2) (Third ed.):521– 24.arXiv :astro-ph/0012289 .Bibcode :2001A&A...367..521P .doi :10.1051/0004-6361:20000451 .S2CID 425754 . ^a b Gebran, M.; Farah, W.; Paletou, F.; Monier, R.; Watson, V. (2016). "A new method for the inversion of atmospheric parameters of A/Am stars".Astronomy & Astrophysics .589 : A83.arXiv :1603.01146 .Bibcode :2016A&A...589A..83G .doi :10.1051/0004-6361/201528052 .S2CID 118549566 . ^ "HD 17471" .SIMBAD .Centre de données astronomiques de Strasbourg . Retrieved22 August 2018 .^ 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 . ^ Wagman, M. (August 1987). "Flamsteed's Missing Stars".Journal for the History of Astronomy .18 (3): 222.Bibcode :1987JHA....18..209W .doi :10.1177/002182868701800305 .S2CID 118445625 . ^a b Zverko, J. (September 1984). "Classification of Ap-Stars HR 830 and 21 CVn".Bulletin of the Astronomical Institute of Czechoslovakia .35 :294– 299.Bibcode :1984BAICz..35..294Z . ^ Kholopov, P. N.; Samus, N. N.; Kazarovets, E. V.; Kireeva, N. N. (August 1987)."The 68th Name-List of Variable Stars" (PDF) .Information Bulletin on Variable Stars .3058 : 1.Bibcode :1987IBVS.3058....1K . Retrieved28 November 2024 . ^a b Wraight, K. T.; Fossati, L.; Netopil, M.; Paunzen, E.; Rode-Paunzen, M.; Bewsher, D.; Norton, A. J.; White, Glenn J. (February 2012)."A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars" .Monthly Notices of the Royal Astronomical Society .420 (1):757– 772.arXiv :1110.6283 .Bibcode :2012MNRAS.420..757W .doi :10.1111/j.1365-2966.2011.20090.x .S2CID 14811051 .