Star in the constellation Mensa
HD 30479 (HR 1531 ) is a solitary star in the southerncircumpolar constellation Mensa . It has anapparent magnitude of 6.04,[ 2] naked eye even under ideal conditions. It is located at a distance of 540light years [ 1] radial velocity ofkm/s [ 5]
HD 30479 has astellar classification of K2 III,[ 3] K-type giant star and has anangular diameter of± 0.07 mas [ 9] limb darkening correction). This yields a radius 17.99[ 7] Sun at its estimated distance. At present it has 1.28[ 6] mass of the Sun and radiates at 116[ 8] luminosity of the Sun at aneffective temperature of 4,390[ 9] K from its enlarged photosphere, which gives it an orange glow. HD 30479 is believed to be one of the metal-deficient members of the young disk population[ 10] [ 10] Sun . Currently, it spins leisurely with aprojected rotational velocity less thankm/s [ 11]
^a b c d e f Brown, A. G. A. ; et al. (Gaia collaboration) (2021)."Gaia Early Data Release 3: Summary of the contents and survey properties" .Astronomy & Astrophysics 649 : A1.arXiv :2012.01533 Bibcode :2021A&A...649A...1G .doi :10.1051/0004-6361/202039657 S2CID 227254300 . (Erratum: doi :10.1051/0004-6361/202039657e ) . Gaia EDR3 record for this source atVizieR .^a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars".Astronomy and Astrophysics .355 :L27 – L30 .Bibcode :2000A&A...355L..27H .ISSN 0004-6361 . ^a b Houk, N.; Cowley, A. P. (1975).University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0 .Bibcode :1975mcts.book.....H . ^a b Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars".Communications of the Lunar and Planetary Laboratory .4 :99– 110.Bibcode :1966CoLPL...4...99J . ^a b 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 atVizieR .^a b Anders, F.; et al. (1 August 2019)."Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18" .Astronomy and Astrophysics .628 : A94.arXiv :1904.11302 Bibcode :2019A&A...628A..94A .doi :10.1051/0004-6361/201935765 ISSN 0004-6361 .S2CID 131780028 . ^a b Lang, Kenneth R. (2006).Astrophysical formulae Birkhäuser .ISBN 3-540-29692-1 * ) is given by:2 ⋅ R ∗ = ( 165.6 ⋅ 1.01 ⋅ 10 − 3 ) AU 0.0046491 AU / R ⨀ ≈ 35.98 ⋅ R ⨀ {\displaystyle {\begin{aligned}2\cdot R_{*}&={\frac {(165.6\cdot 1.01\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 35.98\cdot R_{\bigodot }\end{aligned}}} ^a b McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017)."Fundamental parameters and infrared excesses of Tycho-Gaia stars" .Monthly Notices of the Royal Astronomical Society .471 (1): 770.arXiv :1706.02208 Bibcode :2017MNRAS.471..770M .doi :10.1093/mnras/stx1433 ^a b c d Lafrasse, Sylvain; Mella, Guillaume; Bonneau, Daniel; Duvert, Gilles; Delfosse, Xavier; Chesneau, Olivier; Chelli, Alain (16 July 2010). "Building the 'JMMC Stellar Diameters Catalog' using SearchCal".Optical and Infrared Interferometry II . Vol. 7734. pp. 77344E.arXiv :1009.0137 Bibcode :2010SPIE.7734E..4EL .doi :10.1117/12.857024 .S2CID 32097037 . ^a b c Eggen, O. J. (February 1994)."Evolved GK stars near the Sun. 2: The young disk population" .The Astronomical Journal .107 : 594.Bibcode :1994AJ....107..594E .doi :10.1086/116879 ISSN 0004-6256 . ^a b De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014)."A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆" .Astronomy & Astrophysics .561 : A126.arXiv :1312.3474 Bibcode :2014A&A...561A.126D .doi :10.1051/0004-6361/201220762 ISSN 0004-6361 .
