Astronomy:HD 111597
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Short description: Star in the constellation Centaurus
  | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Centaurus[1] |
| Right ascension | 12h 50m 41.16339s[2] |
| Declination | −33° 59′ 57.6527″[2] |
| Apparent magnitude (V) | 4.90[1] |
| Characteristics | |
| Spectral type | B9V[3] |
| B−V color index | −0.031±0.002[1] |
| Astrometry | |
| Radial velocity (Rv) | +4.00±4.20[1] km/s |
| Proper motion (μ) | RA: −29.710[2] mas/yr Dec.: −13.778[2] mas/yr |
| Parallax (π) | 7.9731 ± 0.2191[2] mas |
| Distance | 410 ± 10 ly (125 ± 3 pc) |
| Absolute magnitude (MV) | −0.53[1] |
| Details | |
| primary | |
| Mass | 4.3[4] M☉ |
| Radius | 4.3[5] R☉ |
| Luminosity | 169[5] L☉ |
| Surface gravity (log g) | 3.58[5] cgs |
| Temperature | 10,043[5] K |
| Rotational velocity (v sin i) | 230[6] km/s |
| Age | 321[7] Myr |
| secondary | |
| Mass | 0.35[4] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 111597 is a suspected astrometric binary[9] star system in the southern constellation of Centaurus. It has the Bayer designation p Centauri, while HD 111597 is the star's identifier from the Henry Draper catalogue. The system is visible to the naked eye as a faint point of light with an apparent visual magnitude of 4.90.[1] It is located at a distance of approximately 410 light years from the Sun based on parallax,[2] and has an absolute magnitude of −0.53.[1] The system is a probable member of the Sco OB2 association of co-moving stars.[10] The visible component is a B-type main-sequence star with a stellar classification of B9V.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 3.0 3.1 Houk, Nancy (1979). Michigan catalogue of two-dimensional spectral types for the HD stars. 3. Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan. Bibcode: 1982mcts.book.....H.
- ↑ 4.0 4.1 Gratton, R.; Squicciarini, V.; Nascimbeni, V.; Janson, M.; Reffert, S.; Meyer, M.; Delorme, P.; Mamajek, E. E. et al. (2023). "Multiples among B stars in the Scorpius-Centaurus association". Astronomy and Astrophysics 678: A93. doi:10.1051/0004-6361/202346806. Bibcode: 2023A&A...678A..93G.
- ↑ 5.0 5.1 5.2 5.3 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
- ↑ Balona, L. A.; Ozuyar, D. (2020). "Pulsation among TESS a and B stars and the Maia variables". Monthly Notices of the Royal Astronomical Society 493 (4): 5871. doi:10.1093/mnras/staa670. Bibcode: 2020MNRAS.493.5871B.
- ↑ Gontcharov, G. A. (November 2012). "Spatial distribution and kinematics of OB stars". Astronomy Letters 38 (11): 694–706. doi:10.1134/S1063773712110035. Bibcode: 2012AstL...38..694G.
- ↑ "HD 111597". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+111597.
- ↑ 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.
- ↑ Rizzuto, Aaron et al. (October 2011). "Multidimensional Bayesian membership analysis of the Sco OB2 moving group". Monthly Notices of the Royal Astronomical Society 416 (4): 3108–3117. doi:10.1111/j.1365-2966.2011.19256.x. Bibcode: 2011MNRAS.416.3108R.
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