Astronomy:HD 56577
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Short description: Star in the constellation Canis Major
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 07h 16m 36.83470s[1] |
| Declination | −23° 18′ 56.1130″[1] |
| Apparent magnitude (V) | 4.79[2] |
| Characteristics | |
| Spectral type | K3Ib-[3] or K4III[4] |
| B−V color index | 1.710[2] |
| Astrometry | |
| Radial velocity (Rv) | +28.05±0.42[1] km/s |
| Proper motion (μ) | RA: −3.942[1] mas/yr Dec.: +2.248[1] mas/yr |
| Parallax (π) | 1.4349 ± 0.1614[1] mas |
| Distance | approx. 2,300 ly (approx. 700 pc) |
| Details | |
| Mass | 1.90[2] or 7.8±0.5[5] M☉ |
| Radius | 241[1] R☉ |
| Luminosity | 5,248[2] L☉ |
| Surface gravity (log g) | 0.70[2] cgs |
| Temperature | 3,937±141[2] K |
| Metallicity [Fe/H] | 0.03[2] dex |
| Rotational velocity (v sin i) | 7.4±1.0[6] km/s |
| Age | 1.05 Gyr[2] or 35.4±2.0[5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 56577 is a single[8] K giant or supergiant star in the southern constellation of Canis Major.This star is Gould's 145th of Canis Major in his Uranometria Argentina. [9] Kostjuk erroneously lists it as simply "145 CMa". SIMBAD follows this error in its object query result as "* 145 CMa – Star".[10]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", The Astronomical Journal 150 (3): 88, doi:10.1088/0004-6256/150/3/88, Bibcode: 2015AJ....150...88L.
- ↑ Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series 71: 245, doi:10.1086/191373, Bibcode: 1989ApJS...71..245K.
- ↑ Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1988mcts.book.....H.
- ↑ 5.0 5.1 Tetzlaff, N. et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society 410 (1): 190–200, doi:10.1111/j.1365-2966.2010.17434.x, Bibcode: 2011MNRAS.410..190T
- ↑ De Medeiros, J. R. et al. (2002), "A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars", Astronomy and Astrophysics 395: 97–98, doi:10.1051/0004-6361:20021214, Bibcode: 2002A&A...395...97D
- ↑ "HD 56577". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+56577.
- ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
- ↑ Gould, B. A., (2009) Uranometria Argentina, (Reprinted and updated by Pilcher, F.)[1]
- ↑ SIMBAD query * 145 CMa – Star
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