Star in the constellation Vela
HD 91324 is a likely binary[ 4] star system in the southernconstellation ofVela . It is visible to the naked eye with anapparent visual magnitude of 4.89.[ 2] parallax shift ofmas [ 1] light years . It is moving further from the Earth with a heliocentricradial velocity of +21 km/s.[ 1]
The primary, component A, is ametal-deficient [ 7] F-type main-sequence star with astellar classification ofF9V Fe-0.8 CH-0.7 ,[ 3] methine in itsspectrum . It is around 3.5[ 5] projected rotational velocity of 9 km/s. The star has 1.18 times themass of the Sun and 1.86 times theSun's radius .[ 4] [ 2] Sun's luminosity from itsphotosphere at aneffective temperature of 6,127 K.[ 4]
A faint star designated 2MASS J10313234–5338010[ 8] proper motion study combining data from theTwo Micron All-Sky Survey and theWISE space telescope . Theprojected separation of the two components is″ AU Proper motion measurements for the two stars are almost identical making HD 91324 a likelybinary star system. Thephotometry of 2MASS J10313234–5338010 is consistent with it being ared dwarf ofspectral type M5 or M6.[ 9]
^a b c d e f g h 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 c d e f 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 . ^a b Gray, R. O.; et al. (2006), "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc-The Southern Sample",The Astronomical Journal ,132 (1):161– 170,arXiv :astro-ph/0603770 Bibcode :2006AJ....132..161G ,doi :10.1086/504637 ,S2CID 119476992 . ^a b c d Fuhrmann, K.; et al. (February 2017), "Multiplicity among Solar-type Stars",The Astrophysical Journal ,836 (1): 23,Bibcode :2017ApJ...836..139F ,doi :10.3847/1538-4357/836/1/139 ^a b Pace, G. (March 2013), "Chromospheric activity as age indicator. An L-shaped chromospheric-activity versus age diagram",Astronomy & Astrophysics ,551 : 4,arXiv :1301.5651 Bibcode :2013A&A...551L...8P ,doi :10.1051/0004-6361/201220364 ,S2CID 56420519 , L8. ^ "HD 91324" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2018-08-13 .^ da Silva, L. (July 1975), "The study of HR 3018, HD 91324 and alpha Crv and its implication for the age-abundance correlation of the neighbour stars",Astronomy and Astrophysics ,41 :287– 300,Bibcode :1975A&A....41..287D . ^ "2MASS J10313234-5338010" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2018-08-13 .^ Luhman, Kevin L.; et al. (2012), "New M, L, and T Dwarf Companions to Nearby Stars from the Wide-field Infrared Survey Explorer",The Astrophysical Journal ,760 (2), 152,arXiv :1211.3977 Bibcode :2012ApJ...760..152L ,doi :10.1088/0004-637X/760/2/152 ,S2CID 51010785 .
