HD 61248

Last updated
HD 61248
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Carina
Right ascension 07h 35m 39.72266s [1]
Declination −52° 32 01.8087 [1]
Apparent magnitude  (V)4.93 [2]
Characteristics
Spectral type K3 III [3]
B−V color 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 ± 0.1335 [1]   mas
Distance 402 ± 7  ly
(123 ± 2  pc)
Absolute magnitude  (MV)−0.47 [2]
Details
Radius 30.27+1.86
−1.95
[1]   R
Luminosity 279.3±5.5 [1]   L
Temperature 4,289+145
−126
[1]   K
Other designations
Q Car, CPD−52º1231, FK5  1198, GC  10206, HD  61248, HIP  36942, HR  2934, SAO  235336 [4]
Database references
SIMBAD data

HD 61248 is a single [5] star in the southern constellation of Carina. It has the Bayer designation Q Carinae, [6] while HD 61248 is the star's identifier in the Henry Draper Catalogue . This star has an orange hue and is visible to the naked eye with an apparent visual magnitude of 4.93. [2] Based upon parallax measurements, it is located approximately 402  light years in distance from the Sun. The object is drifting further away with a radial velocity of +63 km/s, [1] having come to within 89.6 light-years some 1.8 million years ago. [2]

This is an aging giant star with a stellar classification of K3 III, [3] which means it is no longer undergoing core hydrogen fusion. It has expanded to 30 times the Sun's radius and is radiating 279 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,289 K. [1]

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HD 22663 is a candidate astrometric binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye with an apparent visual magnitude of 4.57. Based upon an annual parallax shift of 14.2 mas, it is located around 230 light years from the Sun. It is moving further away from the Earth with a heliocentric radial velocity of +11.5 km/s, having come within 140.9 ly some 3.76 million years ago.

6 Hydrae is a single star in the equatorial constellation of Hydra, located 373 light-years away from the Sun. It has the Bayer designation a Hydrae; 6 Hydrae is the Flamsteed designation. This object is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.98. It is moving closer to the Earth with a heliocentric radial velocity of −8 km/s. Eggen (1995) listed it as a proper motion candidate for membership in the IC 2391 supercluster.

HD 143009 is a single star in the southern constellation of Lupus. It has an orange hue and is visible to the naked eye with an apparent visual magnitude of 4.99. The star lies at a distance of approximately 380 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −27 km/s. It has an absolute magnitude of −0.64.

HD 163145 is a single star in the constellation Scorpius, near the southeast constellation border with Corona Australis. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.85. Based on parallax measurements, it is located at a distance of approximately 307 light years from the Sun. The star is drifting further away with a radial velocity of +35.6 km/s, having come to within 49.2 light-years of the Sun some 1.871 million years ago. It has an absolute magnitude of 0.12.

HD 95370 is a single star in the southern constellation of Vela. With an apparent visual magnitude of 4.37, it can be viewed with the naked eye. The distance to this star can be determined from its annual parallax shift of 17.2 mas, yielding a value of 190 light years. It is moving closer to the Earth with a heliocentric radial velocity of −3.5 km/s.

HD 79917 is a single star in the southern constellation of Vela. It has the Bayer designation l Velorum, while HD 79917 is the star's identifier from the Henry Draper Catalogue. The star has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.92. It is located at a distance of approximately 228 light-years from the Sun based on parallax, and is drifting further away with a radial velocity of +1.6 km/s.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 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. 1 2 3 4 5 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.
  3. 1 2 Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
  4. "HD 61248". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2019-01-06.
  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, S2CID   14878976.
  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.