HD 60863

HD 60863
Location of HD 60863 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension 07h 35m 22.89366s[1]
Declination −28° 22′ 09.5735″[1]
Apparent magnitude (V) 4.65[2]
Characteristics
Spectral type B8V[3]
U−B color index -0.43[4]
B−V color index -0.12[4]
Astrometry
Radial velocity (Rv)+3.30[5] km/s
Proper motion (μ) RA: -65.93[1] mas/yr
Dec.: -19.73[1] mas/yr
Parallax (π)14.72 ± 0.67 mas[1]
Distance220 ± 10 ly
(68 ± 3 pc)
Absolute magnitude (MV)0.46[2]
Orbit[6]
PrimaryA
CompanionB
Period (P)10 years
Semi-major axis (a)7.4 AU
Details
A
Mass3.1±0.1[6] M
Radius2.4[6] R
Luminosity120[7] L
Surface gravity (log g)4.29[8] cgs
Temperature12,680[7] K
Rotational velocity (v sin i)203[7] km/s
Age110+50
−20
[6] Myr
B
Mass0.58+0.0
−0.3
[6] M
Radius0.54[6] R
Temperature4,000[6] K
Other designations
p Puppis, CD-28°4566, CCDM J07354-2823A, GC 10178, GSC 06551-03461, HIP 36917, HR 2922, HD 60863, SAO 174058, WDS J07354-2822A
Database references
SIMBADdata

p Puppis (HD 60863) is a star system the constellation Puppis. This system consists of a B8V[3] (blue main-sequence) star and a secondary star at 7.4 AU, much smaller than the primary, as well as farther companions.[6] Its apparent magnitude is 4.65[2] and it is approximately 222 light years away based on parallax.[1]

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.[6]

  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
  2. ^ a b c 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. Vizier catalog entry
  3. ^ a b 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.
  4. ^ a b 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
  5. ^ 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. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. S2CID 119323941.
  6. ^ a b c d e f g h i 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*". Research Notes of the AAS. 8 (6): 160. doi:10.3847/2515-5172/ad5724. ISSN 2515-5172.
  7. ^ a b c Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry
  8. ^ 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. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
  9. ^ "HIP 36890". SIMBAD. Centre de données astronomiques de Strasbourg.