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PP Carinae is the variable star designation for a star in the southern constellation of Carina . It has the Bayer designation p Carinae (p Car) and, at an apparent visual magnitude of +3.30,[ 2] parallax shift of this star as the Earth orbits the Sun, its distance can be estimated as roughly 480 light-years (150 parsecs ) with a 6% margin of error .[ 1]
PP Carinae is a B-type main sequence star with a stellar classification of B4 Vne.[ 3] Be star that is surrounded by hot circumstellar gas. This material adds emission lines to the spectrum of the star. It has a projected rotational velocity of 325 km s−1 ,[ 7] [ 5] [ 6] Gamma Cassiopeiae type variable and its brightness varies from magnitude +3.27 to +3.37.
References
^ a b c d e f 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 . ^ a b c Wielen, R.; et al. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions , Astronomisches Rechen-Institut Heidelberg, Bibcode :1999VeARI..35....1W . ^ a b Houk, Nancy (1978), Michigan catalogue of two dimensional spectral types for the HD stars , vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode :1975mcts.book.....H . ^ a b Feinstein, A.; Marraco, H. G. (November 1979), "The photometric behavior of Be Stars", Astronomical Journal , 84 : 1713–1725, Bibcode :1979AJ.....84.1713F , doi :10.1086/112600 . ^ a b c Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society 410 (1): 190–200, arXiv :1007.4883 Bibcode :2011MNRAS.410..190T , doi :10.1111/j.1365-2966.2010.17434.x . {{citation }}: CS1 maint: unflagged free DOI (link )^ a b c d Meilland, A.; Stee, Ph.; Chesneau, O.; Jones, C. (October 2009), "VLTI/MIDI observations of 7 classical Be stars", Astronomy and Astrophysics , 505 (2): 687–693, arXiv :0908.1239 Bibcode :2009A&A...505..687M , doi :10.1051/0004-6361/200911960 . ^ a b Bernacca, P. L.; Perinotto, M. (1970), "A catalogue of stellar rotational velocities", Contributi Osservatorio Astronomico di Padova in Asiago , 239 (1), Bibcode :1970CoAsi.239....1B .
