Star in the constellation Puppis
16 Puppis is a suspected astrometric binary [ 11] star system in the southern constellation of Puppis , and is located in the northernmost part of its constellation, almost due north of the bright star Rho Puppis , and east of Canis Major . It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 4.40.[ 2] The star is located is approximately 465 light years away from the Sun based on parallax .[ 1] It was the brightest star in Officina Typographica , an obsolete constellation.[ 12]
The visible member is a B-type main-sequence star with a stellar classification of B5 V,[ 3] according to N. Houk and M. Smith-Moore (1978). Earlier, Hoffleit et al. (1964) had listed a class of B5 IV,[ 4] suggesting a more evolved subgiant star . It is spinning rapidly, which is creating an equatorial bulge that is 6% larger than the polar radius.[ 10] The star is radiating 836[ 2] times the luminosity of the Sun from its photosphere at an effective temperature of 16,680 K.[ 8]
^ 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
^ a b c d e 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
^ a b Houk, Nancy; Smith-Moore, M. (1978). Michigan catalogue of two-dimensional spectral types for the HD stars . Vol. 4. Ann Arbor: Dept. of Astronomy, University of Michigan. Bibcode :1988mcts.book.....H .
^ 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 .
^ 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
^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters . 32 (11): 759–771. arXiv :1606.08053 . Bibcode :2006AstL...32..759G . doi :10.1134/S1063773706110065 . S2CID 119231169 .
^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics . 591 : A118. arXiv :1605.07384 . Bibcode :2016A&A...591A.118S . doi :10.1051/0004-6361/201628497 . S2CID 119258214 .
^ a b Zorec, J.; Cidale, L.; Arias, M. L.; Frémat, Y.; Muratore, M. F.; Torres, A. F.; Martayan, C. (2009). "Fundamental parameters of B supergiants from the BCD system". Astronomy and Astrophysics . 501 (1): 297–320. arXiv :0903.5134 . Bibcode :2009A&A...501..297Z . doi :10.1051/0004-6361/200811147 . S2CID 14969137 .
^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars" . The Astrophysical Journal . 573 (1): 359–365. Bibcode :2002ApJ...573..359A . doi :10.1086/340590 .
^ a b van Belle, Gerard T. (March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review . 20 (1): 51. arXiv :1204.2572 . Bibcode :2012A&ARv..20...51V . doi :10.1007/s00159-012-0051-2 . S2CID 119273474 .
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems" . Monthly Notices of the Royal Astronomical Society . 389 (2): 869–879. arXiv :0806.2878 . Bibcode :2008MNRAS.389..869E . doi :10.1111/j.1365-2966.2008.13596.x . S2CID 14878976 .
^ Ian Ridpath's Star Tales - Officina Typographica