16 Puppis

{{Short description|Star in the constellation Puppis}}

{{Starbox begin

| name = 16 Puppis

}}

{{Starbox image

|image=

{{Location mark

|image=Puppis constellation map.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=16 Puppis

|x=282|y=350

}}

|caption=Location of 16 Puppis (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Puppis

| ra = {{RA|08|09|01.63741}}{{cite journal | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | last1=Van Leeuwen | first1=F. | s2cid=18759600 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2039906 Vizier catalog entry]

| dec = {{DEC|-19|14|42.0521}}

| appmag_v = 4.40{{cite journal | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | title=XHIP: An extended hipparcos compilation | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | s2cid=119257644 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=V/137D/XHIP&HIP=39906 Vizier catalog entry]

}}

{{Starbox character

| class = B5 V{{cite book | last1=Houk | first1=Nancy | last2=Smith-Moore | first2=M. | title=Michigan catalogue of two-dimensional spectral types for the HD stars | volume=4 | location=Ann Arbor | year=1978 | publisher=Dept. of Astronomy, University of Michigan | bibcode=1988mcts.book.....H }} or B5 IV{{cite journal | bibcode=1995yCat.5050....0H | title=VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) | journal=VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H | volume=5050 | last1=Hoffleit | first1=D. | last2=Warren | first2=W. H. | year=1995 }}

| b-v = -0.15{{cite journal | bibcode=2014JAVSO..42..443M | title=Sloan Magnitudes for the Brightest Stars | journal=The Journal of the American Association of Variable Star Observers | volume=42 | issue=2 | pages=443 | last1=Mallama | first1=A. | year=2014 }}[http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/other/JAVSO/42.443/ugriz&HD=067797 Vizier catalog entry]

| u-b = -0.60

}}

{{Starbox astrometry

| radial_v = +19.90{{Cite journal | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system| journal=Astronomy Letters| volume=32| issue=11| pages=759–771| year=2006| last1=Gontcharov| first1=G. A.|arxiv = 1606.08053 | s2cid=119231169}}

| prop_mo_ra = −9.87

| prop_mo_dec = −5.55

| parallax = 7.01

| p_error = 0.22

| parallax_footnote =

| absmag_v = -1.37

}}

{{Starbox detail

| temperature = 16,680{{cite journal | arxiv=0903.5134 | bibcode=2009A&A...501..297Z | doi=10.1051/0004-6361/200811147 | title=Fundamental parameters of B supergiants from the BCD system | journal=Astronomy and Astrophysics | volume=501 | pages=297–320 | year=2009 | last1=Zorec | first1=J. | last2=Cidale | first2=L. | last3=Arias | first3=M. L. | last4=Frémat | first4=Y. | last5=Muratore | first5=M. F. | last6=Torres | first6=A. F. | last7=Martayan | first7=C. | issue=1 | s2cid=14969137 }}

| luminosity = 836

| rotational_velocity = 140{{cite journal | bibcode=2002ApJ...573..359A | doi=10.1086/340590 | title=Rotational Velocities of B Stars | journal=The Astrophysical Journal | volume=573 | issue=1 | pages=359–365 | year=2002 | last1=Abt | first1=Helmut A. | last2=Levato | first2=Hugo | last3=Grosso | first3=Monica | doi-access=free }} or 185{{cite journal | last1=van Belle | first1=Gerard T. | title=Interferometric observations of rapidly rotating stars | journal=The Astronomy and Astrophysics Review | volume=20 | issue=1 | page=51 | date=March 2012 | doi=10.1007/s00159-012-0051-2 | bibcode=2012A&ARv..20...51V | arxiv=1204.2572 | s2cid=119273474 }}

| gravity = 3.701{{cite journal | bibcode=2016A&A...591A.118S | doi=10.1051/0004-6361/201628497 |arxiv=1605.07384 | title=The PASTEL catalogue: 2016 version | journal=Astronomy & Astrophysics | volume=591 | pages=A118 | year=2016 | last1=Soubiran | first1=Caroline | last2=Le Campion | first2=Jean-François | last3=Brouillet | first3=Nathalie | last4=Chemin | first4=Laurent | s2cid=119258214 }}

}}

{{Starbox catalog

| names = {{odlist | F=16 Pup | BD=-18°2190 | FK5=2632 | GC=11071 | HD=67797 | HIP=39906 | HR=3192 | SAO=153890 | GSC=06004-03719 }}

}}

{{Starbox reference

| Simbad = 16+Puppis

}}

{{Starbox end}}

16 Puppis is a suspected astrometric binary{{cite journal | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }} 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. The star is located is approximately 465 light years away from the Sun based on parallax. It was the brightest star in Officina Typographica, an obsolete constellation.[http://www.ianridpath.com/startales/officina.html Ian Ridpath's Star Tales - Officina Typographica]

The visible member is a B-type main-sequence star with a stellar classification of B5 V, according to N. Houk and M. Smith-Moore (1978). Earlier, Hoffleit et al. (1964) had listed a class of B5 IV, suggesting a more evolved subgiant star. It is spinning rapidly, which is creating an equatorial bulge that is 6% larger than the polar radius. The star is radiating 836 times the luminosity of the Sun from its photosphere at an effective temperature of 16,680 K.