Astronomy:HD 60863
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Short description: Star in the constellation Puppis
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis[1] |
| Right ascension | 07h 35m 22.89366s[2] |
| Declination | −28° 22′ 09.5735″[2] |
| Apparent magnitude (V) | 4.65[1] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | B8V[4] |
| U−B color index | −0.43[5] |
| B−V color index | −0.12[5] |
| Astrometry | |
| Radial velocity (Rv) | +3.30[6] km/s |
| Proper motion (μ) | RA: −65.93[2] mas/yr Dec.: −19.73[2] mas/yr |
| Parallax (π) | 14.72 ± 0.67[2] mas |
| Distance | 220 ± 10 ly (68 ± 3 pc) |
| Absolute magnitude (MV) | 0.46[1] |
| Details | |
| A | |
| Mass | 3.1±0.1[7] M☉ |
| Radius | 2.4[7] R☉ |
| Luminosity | 120[3] L☉ |
| Surface gravity (log g) | 4.29[8] cgs |
| Temperature | 12,680[3] K |
| Rotational velocity (v sin i) | 203[3] km/s |
| Age | 110+50 −20[7] Myr |
| B | |
| Mass | 0.58+0.0 −0.3[7] M☉ |
| Radius | 0.54[7] R☉ |
| Temperature | 4,000[7] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
p Puppis (HD 60863) is a star system the constellation Puppis. This system consists of a B8V[4] (blue main-sequence) star and a secondary star at 7.4 AU, much smaller than the primary, as well as farther companions.[7] Its apparent magnitude is 4.65[1] and it is approximately 222 light years away based on parallax.[2]
In addition to the inner pair, there are the distant companions HIP 36890, at apparent magnitude 7.83[9] and projected separation of 38,700 AU, which is itself an astrometric binary, and a faint white dwarf at a distance of 1,300 AU. This make p Puppis a five-star system.[7]
References
- ↑ 1.0 1.1 1.2 1.3 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 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. Vizier catalog entry
- ↑ 3.0 3.1 3.2 3.3 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. Bibcode: 2012A&A...537A.120Z. Vizier catalog entry
- ↑ 4.0 4.1 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.
- ↑ 5.0 5.1 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers 42 (2): 443. Bibcode: 2014JAVSO..42..443M.Vizier catalog entry
- ↑ Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten 328 (9): 889. doi:10.1002/asna.200710776. Bibcode: 2007AN....328..889K.
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Waisberg, Idel; Klein, Ygal; Katz, Boaz (June 2024). "Hidden Companions to Intermediate-mass Stars. XX. Discovery of a 0.58 M☉, 7.4 au Companion to p Puppis*" (in en). Research Notes of the AAS 8 (6): 160. doi:10.3847/2515-5172/ad5724. ISSN 2515-5172.
- ↑ David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal 804 (2): 146. doi:10.1088/0004-637X/804/2/146. Bibcode: 2015ApJ...804..146D. Vizier catalog entry
- ↑ "HIP 36890". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+36890.
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