PT Puppis

PT Puppis (PT Pup) is a star in the constellation Puppis. Anamarija Stankov confirmed this star as a Beta Cephei variable.[3] Analysis of its spectrum and allowing for extinction gives a mass 7.94 times that of the Sun, a surface temperature of 19,400 K and luminosity of 6405 Suns.[2]

PT Puppis
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis
Right ascension 07h 36m 41.03388s[1]
Declination 19° 42 08.4211[1]
Characteristics
Spectral type B2 II
Variable type Beta Cephei
Astrometry
Radial velocity (Rv)+22.00 ± 4.3 km/s
Proper motion (μ) RA: 7.86 ± 0.21[1] mas/yr
Dec.: 5.81 ± 0.20[1] mas/yr
Parallax (π)1.93 ± 0.28[1] mas
Distanceapprox. 1,700 ly
(approx. 520 pc)
Details
Mass7.94[2] M
Luminosity6405[2] L
Temperature19400[2] K
Other designations
PT Puppis, HR 2928, HD 61068, HIP 37036, SAO 153149
Database references
SIMBADdata

References

  1. van Leeuwen, F. (November 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
  2. Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten, 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355, S2CID 111387483
  3. Stankov, Anamarija; Handler, Gerald (2005). "Catalog of Galactic β Cephei Stars". The Astrophysical Journal Supplement Series. 158 (2): 193–216. arXiv:astro-ph/0506495. Bibcode:2005ApJS..158..193S. doi:10.1086/429408. ISSN 0067-0049. S2CID 119526948.


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