This article is about h2 Puppis. For other stars with this Bayer designation, see h Puppis. For H Puppis, see HD 53811.
HD 69142
Location of HD 69142 (circled)
Observation data Epoch J2000 Equinox J2000
Constellation
Puppis
Right ascension
08h 14m 02.92219s[1]
Declination
−40° 20′ 52.4031″[1]
Apparent magnitude (V)
4.44[2]
Characteristics
Spectral type
K1II-III[3]
U−B color index
+1.09[2]
B−V color index
+1.17[2]
Astrometry
Radial velocity (Rv)
+13.50[4] km/s
Proper motion (μ)
RA: +45.51[1] mas/yr Dec.: -65.60[1] mas/yr
Parallax (π)
10.93 ± 0.48 mas[1]
Distance
300 ± 10 ly (91 ± 4 pc)
Absolute magnitude (MV)
-0.38[5]
Orbit[6]
Primary
h2 Puppis Aa
Companion
h2 Puppis Ab
Period (P)
930 days
Semi-major axis (a)
10.66 mas
Eccentricity (e)
0.4
Inclination (i)
135.2°
Longitude of the node (Ω)
181.7°
Periastron epoch (T)
2418060
Argument of periastron (ω) (secondary)
140°
Details
Mass
1.79[7]M☉
Radius
23[7]R☉
Luminosity
207[5]L☉
Surface gravity (log g)
1.97[7] cgs
Temperature
4,467[7] K
Rotational velocity (v sin i)
< 1.0[8] km/s
Other designations
h2 Puppis, CD-39°4128, CPD-39°2219, CCDM J08140-4021A, GC 11215, GSC 07664-02482, HIP 40326, HR 3243, HD 69142, SAO 219635, WDS J08140-4021A
Database references
SIMBAD
data
HD 69142 is a class K1II-III[3] (orange bright giant) star in the constellation Puppis. Its apparent magnitude is 4.44[2] and it is approximately 298 light years away based on parallax.[1]
It is a multiple star; the primary is a spectroscopic binary with a 2.55 year orbit with eccentricity 0.4,[9] and there is a more distant companion B at 59.4" and 9.5 magnitude.[10]
^ abcdefVan 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
^ abcdDucati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
^ abHoffleit, 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.
^Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
^Jancart, S. (2005). "Astrometric orbits of SB9 stars". Astronomy and Astrophysics. 442 (1): 365–380. arXiv:astro-ph/0507695. Bibcode:2005A&A...442..365J. doi:10.1051/0004-6361:20053003. S2CID 15123997.
^ abcdAllende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. Vizier catalog entry
^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. Vizier catalog entry
^Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. Vizier catalog entry
^Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
HD69142 is a class K1II-III (orange bright giant) star in the constellation Puppis. Its apparent magnitude is 4.44 and it is approximately 298 light years...
(NS Puppis), an irregular variable supergiant h2 Puppis (HD69142), a K-type giant H Puppis (HD 53811), an A-type subgiant This article includes a list...