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HD 61248

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HD 61248
Observation data
EpochJ2000.0EquinoxJ2000.0
Constellation Carina
Right ascension 07h35m39.72266s[1]
Declination −52° 32′ 01.8087″[1]
Apparent magnitude(V) 4.93[2]
Characteristics
Spectral type K3 III[3]
B−Vcolor index 1.373±0.064[2]
Astrometry
Radial velocity(Rv)+63.32±0.13[1]km/s
Proper motion(μ)RA:+22.137[1]mas/yr
Dec.:-11.639[1]mas/yr
Parallax(π)8.1036 ± 0.1335mas[1]
Distance402 ± 7ly
(123 ± 2pc)
Absolute magnitude(MV)−0.47[2]
Details
Radius30.27+1.86
−1.95
[1]R
Luminosity279.3±5.5[1]L
Temperature4,289+145
−126
[1]K
Other designations
Q Car,CPD−52º1231,FK51198,GC10206,HD61248,HIP36942,HR2934,SAO235336[4]
Database references
SIMBADdata

HD 61248is a single[5]starin the southernconstellationofCarina.It has theBayer designationQ Carinae,[6]whileHD 61248is the star's identifier in theHenry Draper Catalogue.This star has an orange hue and is visible to the naked eye with anapparent visual magnitudeof 4.93.[2]Based uponparallaxmeasurements, it is located approximately 402light yearsin distance from theSun.The object is drifting further away with aradial velocityof +63 km/s,[1]having come to within 89.6 light-years some 1.8 million years ago.[2]

This is an aginggiant starwith astellar classificationof K3 III,[3]which means it is no longer undergoingcorehydrogen fusion.It has expanded to 30 times theSun's radiusand is radiating 279 times theluminosity of the Sunfrom its enlargedphotosphereat aneffective temperatureof 4,289 K.[1]

References

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  1. ^abcdefghijkBrown, A. G. A.;et al. (Gaia collaboration) (August 2018)."GaiaData 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 sourceatVizieR.
  2. ^abcdeAnderson, 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,S2CID119257644.
  3. ^abHouk, Nancy (1978),Michigan catalogue of two-dimensional spectral types for the HD stars,vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan,Bibcode:1978mcts.book.....H.
  4. ^"HD 61248".SIMBAD.Centre de données astronomiques de Strasbourg.Retrieved2019-01-06.
  5. ^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,S2CID14878976.
  6. ^Kostjuk, N.D. (2002), "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index",Institute of Astronomy of the Russian Academy of Sciences,Bibcode:2004yCat.4027....0K.