HD_92063 Latitude and Longitude:

Sky map 10h 36m 20.3s, −59° 33′ 53″
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HD 92063

Carina Nebula with HD 92603 near the right edge of the frame
Observation data
Epoch J2000       Equinox J2000
Constellation Carina
Right ascension 10h 36m 20.51819s [1]
Declination −59° 33′ 51.8102″ [1]
Apparent magnitude (V) 5.08 [2]
Characteristics
Spectral type K1III [3]
B−V color index 1.172±0.005 [2]
Variable type suspected [4]
Astrometry
Radial velocity (Rv)−10.15±0.19 [1] km/s
Proper motion (μ) RA: −40.984±0.229 [1]  mas/ yr
Dec.: −39.180±0.226 [1]  mas/ yr
Parallax (π)13.2367 ± 0.1354  mas [1]
Distance246 ± 3  ly
(75.5 ± 0.8  pc)
Absolute magnitude (MV)0.55 [2]
Details
Mass1.2 [5]  M
Radius13.85+0.26
−1.17
[1]  R
Luminosity72.1±0.9 [1]  L
Surface gravity (log g)2.25 [5]  cgs
Temperature4,520+204
−41
[1]  K
Metallicity [Fe/H]+0.02 [5]  dex
Rotational velocity (v sin i)<1.2 [6] km/s
Other designations
t1 Car, NSV 4909, CPD−58°2371, GC 14594, HD 92063, HIP 51912, HR 4164, SAO 238242 [7]
Database references
SIMBAD data

HD 92063 is a single [8] star in the southern constellation of Carina. It has the Bayer designation t1 Carinae, while HD 92063 is the star's identifier from the Henry Draper Catalogue. This is a suspected variable star [4] and is visible to the naked eye with an apparent visual magnitude of 5.08. [2] The star is located at a distance of approximately 246  light years from the Sun based on parallax, but is drifting closer with a radial velocity of −10 km/s. [1] Although it appears at the edge of the Carina Nebula, it is much closer than the nebula. It is also not considered a member of the nearby Alessi 5 open cluster of stars. [9]

This is an aging K-type giant star with a stellar classification of K1III, [3] having exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. At present it has 14 [1] times the radius of the Sun. The star is radiating 72 [1] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,520 K. [1]

References

  1. ^ a b c d e f g h i j k l m 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. ^ a b c d 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. ^ a b Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1975mcts.book.....H.
  4. ^ a b Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017), "General catalogue of variable stars: Version GCVS 5.1", Astronomy Reports, 61 (1): 80, Bibcode: 2017ARep...61...80S, doi: 10.1134/S1063772917010085, S2CID  125853869.
  5. ^ a b c Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (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, S2CID  131780028.
  6. ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014), "A catalog of rotational and radial velocities for evolved stars", Astronomy & Astrophysics, 561: A126, arXiv: 1312.3474, Bibcode: 2014A&A...561A.126D, doi: 10.1051/0004-6361/201220762, S2CID  54046583.
  7. ^ "HD 92063". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-12.
  8. ^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID  14878976.
  9. ^ Cantat-Gaudin, T.; et al. (July 2018), "Characterising open clusters in the solar neighbourhood with the Tycho-Gaia Astrometric Solution", Astronomy & Astrophysics, 615: 15, arXiv: 1801.10042, Bibcode: 2018A&A...615A..49C, doi: 10.1051/0004-6361/201731251, S2CID  56324345, A49.

External links