16 Puppis

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16 Puppis
Puppis constellation map.svg
Red circle.svg
Location of 16 Puppis (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Puppis
Right ascension 08h 09m 01.63741s [1]
Declination −19° 14′ 42.0521″ [1]
Apparent magnitude  (V)4.40 [2]
Characteristics
Spectral type B5 V [3] or B5 IV [4]
U−B color index -0.60 [5]
B−V color index -0.15 [5]
Astrometry
Radial velocity (Rv)+19.90 [6]  km/s
Proper motion (μ)RA: −9.87 [1]   mas/yr
Dec.: −5.55 [1]   mas/yr
Parallax (π)7.01 ± 0.22  mas [1]
Distance 470 ± 10  ly
(143 ± 4  pc)
Absolute magnitude  (MV)-1.37 [2]
Details
Luminosity 836 [2]   L☉
Surface gravity (log g)3.701 [7]   cgs
Temperature 16,680 [8]   K
Rotational velocity (v sin i)140 [9] or 185 [10]  km/s
Other designations
16 Pup, BD−18°2190, FK5  2632, GC  11071, HD  67797, HIP  39906, HR  3192, SAO  153890, GSC  06004-03719
Database references
SIMBAD data

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]

Related Research Articles

<span class="mw-page-title-main">HD 20468</span> K-type bright giant star in the constellation Perseus

HD 20468 is a class K2II star in the constellation Perseus. Its apparent magnitude is 4.82 and it is approximately 1180 light years away based on parallax.

<span class="mw-page-title-main">HD 63922</span> Binary star system in the constellation Puppis

HD 63922 is a class B0III star in the constellation Puppis. Its apparent magnitude is 4.11 and it is approximately 1600 light years away based on parallax.

<span class="mw-page-title-main">HD 64760</span> Star in the constellation Puppis

HD 64760 is a class B0.5 supergiant star in the constellation Puppis. Its apparent magnitude is 4.24 and it is approximately 1,660 light years away based on parallax.

<span class="mw-page-title-main">HD 69142</span> Star in the constellation Puppis

HD 69142 is a class K1II-III star in the constellation Puppis. Its apparent magnitude is 4.44 and it is approximately 298 light years away based on parallax.

<span class="mw-page-title-main">HD 70060</span> Star in the constellation Puppis

HD 70060 is a class A8V star in the constellation Puppis. Its apparent magnitude is 4.45 and it is approximately 93.4 light years away based on parallax.

<span class="mw-page-title-main">QZ Puppis</span> Star in the constellation Puppis

QZ Puppis is a class B2.5V star in the constellation Puppis. Its apparent magnitude is 4.5 and it is approximately 650 light years away based on parallax.

<span class="mw-page-title-main">HD 61330</span> Star in the constellation Puppis

HD 61330 is a class B8IV star in the constellation Puppis. Its apparent magnitude is 4.53 and it is approximately 360 light years away based on parallax.

<span class="mw-page-title-main">HD 65810</span> Star in the constellation Puppis

HD 65810 is a class A2V star in the constellation Puppis. Its apparent magnitude is 4.61 and it is approximately 241 light years away based on parallax.

<span class="mw-page-title-main">NV Puppis</span> Star in the constellation Puppis

NV Puppis, also known as υ1 Puppis, is a class B2V star in the constellation Puppis. Its apparent magnitude is 4.67 and it is approximately 800 light years away based on parallax.

<span class="mw-page-title-main">HD 59890</span> Star in the constellation Puppis

HD 59890 is a class G3Ib yellow supergiant star in the constellation Puppis. Its apparent magnitude is 4.65 and it is approximately 1,360 light years away based on parallax.

<span class="mw-page-title-main">HD 60863</span> Star in the constellation Puppis

p Puppis is a star system the constellation Puppis. This system consists of a B8V star and a secondary star at 7.4 AU, much smaller than the primary, as well as farther companions. Its apparent magnitude is 4.65 and it is approximately 222 light years away based on parallax.

<span class="mw-page-title-main">HD 63744</span> Star in the constellation Puppis

HD 63744 is a class K0III star in the constellation Puppis. Its apparent magnitude is 4.71 and it is approximately 232 light years away based on parallax.

<span class="mw-page-title-main">19 Puppis</span> Binary star in the constellation Puppis

19 Puppis is a binary star system in the southern constellation of Puppis, near the northern border with Hydra and Monoceros. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.72. The system is located approximately 177 light years away from the system based on parallax. It is receding from the Earth with a heliocentric radial velocity of +36 km/s, having come to within 31 light-years some 1.4 million years ago.

<span class="mw-page-title-main">HD 70555</span> Star in the constellation Puppis

HD 70555 is a class K2.5II-III star in the constellation Puppis. Its apparent magnitude is 4.83 and it is approximately 1,010 light years away based on parallax.

<span class="mw-page-title-main">HD 61831</span> Star in the constellation Puppis

HD 61831 is a class B2.5V star in the constellation Puppis. Its apparent magnitude is 4.84 and it is approximately 556 light years away based on parallax.

<span class="mw-page-title-main">OU Puppis</span> Star in the constellation Puppis

OU Puppis is a chemically peculiar class A0 star in the constellation Puppis. Its apparent magnitude is about 4.9 and it is approximately 188 light-years away based on parallax.

<span class="mw-page-title-main">HD 51799</span> Star in the constellation Puppis

HD 51799 is a class M1III star in the constellation Puppis. Its apparent magnitude is 4.95 and it is approximately 860 light years away based on parallax.

<span class="mw-page-title-main">HD 50235</span> Star in the constellation Puppis

HD 50235 is a class K5III star located approximately 811 light years away, in the constellation Puppis. Its apparent magnitude is 4.99. HD 50235 made its closest approach to the Sun 7.8 million years ago, at the distance of 137 light years, during which it had an apparent magnitude of 1.13.

HD 189831 is a class K5III star in the constellation Sagittarius. Its apparent magnitude is 4.77 and it is approximately 366 light years away based on parallax.

Theta<sup>2</sup> Microscopii Star in the constellation Microscopium

Theta2 Microscopii is a class A0III star in the constellation Microscopium. Its apparent magnitude is 5.76 and it is approximately 390 light years away based on parallax. It is an Ap star, a chemically peculiar star with unusually strong metallic spectral lines.

References

  1. 1 2 3 4 5 6 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. 1 2 3 4 5 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. 1 2 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.
  4. 1 2 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.
  5. 1 2 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
  6. ↑ 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.
  7. ↑ 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.
  8. 1 2 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.
  9. ↑ 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 .
  10. 1 2 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.
  11. ↑ 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.
  12. ↑ Ian Ridpath's Star Tales - Officina Typographica
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