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HD 75063

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

{{about|a Velorum|A Velorum|HD 72108}}

{{Starbox begin}}

{{Starbox observe

| epoch = J2000.0

| constell = Vela

| ra = {{RA|08|46|01.64391}}

| dec = {{DEC|−46|02|29.5042}}

| appmag_v = 3.87

}}

{{Starbox character

| type =

| class = A1III or A0 II

| b-v = {{Val|0.015|0.029}}

| u-b =

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|+23.2|0.3}}

| prop_mo_ra = −12.82

| prop_mo_dec = +4.23

| parallax = 1.76

| p_error = 0.14

| parallax_footnote =

| absmag_v = −4.89

}}

{{Starbox detail

| source =

| mass = {{Val|8.6|0.3}}

| radius = 4.5

| gravity =

| luminosity = 8,669.71

| temperature = 8,023

| metal_fe =

| age_myr = {{Val|30.6|2.6}}

| rotational_velocity = 30

}}

{{Starbox catalog

| names = {{odlist | B=a Vel | CD=–45°4517 | HD=75063 | HIP=43023 | HR=3487 | SAO=220422 }}

}}

{{Starbox reference

| Simbad = a+Vel

}}

{{Starbox end}}

HD 75063 is a single star in the southern constellation of Vela. It has the Bayer designation of a Velorum, while HD 75063 is the identifier from the Henry Draper Catalogue. This is a naked-eye star with an apparent visual magnitude of 3.87 and has a white hue. The star is located at a distance of approximately 1,900 light-years from the Sun based on parallax measurements and has an absolute magnitude of −4.89. It is drifting further away with a radial velocity of +23 km/s.

This object has been stellar classifications of A1III and A0 II, matching a massive A-type giant or bright giant star, respectively. It is an estimated 31 million years old and is spinning with a projected rotational velocity of 30 km/s. The star has 8.6 times the mass of the Sun and around 4.5 times the Sun's radius. The star is radiating 8,670 times the Sun's luminosity from its photosphere at an effective temperature of {{val|8023|ul=K|fmt=commas}}.

References

{{reflist|refs=

{{cite simbad | title=a Vel | access-date=2020-01-22 }}

{{cite journal

| title=XHIP: An extended hipparcos compilation

| last1=Anderson | first1=E. | last2=Francis | first2=Ch.

| journal=Astronomy Letters | volume=38

| issue=5 | pages=331 | year=2012

| bibcode=2012AstL...38..331A | arxiv=1108.4971

| doi=10.1134/S1063773712050015 | s2cid=119257644 }}

{{cite book

| last1=Houk | first1=Nancy

| title=Michigan catalogue of two-dimensional spectral types for the HD stars

| volume=2 | publication-place=Ann Arbor

| publisher=Dept. of Astronomy, University of Michigan | year=1978

| bibcode=1978mcts.book.....H }}

{{cite journal

| title=Validation of the new Hipparcos reduction

| url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html

| last1=van Leeuwen | first1=F.

| journal=Astronomy and Astrophysics

| volume=474 | issue=2 | pages=653–664 | year=2007

| arxiv=0708.1752 | bibcode=2007A&A...474..653V

| doi=10.1051/0004-6361:20078357

| s2cid=18759600

}} [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=42892 Vizier catalog entry ]

{{cite journal

| title=Rotational velocities of A-type stars II. Measurement of vsini in the northern hemisphere

| display-authors=1 | last1=Royer | first1=F.

| last2=Grenier | first2=S. | last3=Baylac | first3=M. O.

| last4=Gómez | first4=A. E. | last5=Zorec | first5=J.

| journal=Astronomy & Astrophysics

| volume=393 | date=May 2002 | pages=897–912

| doi=10.1051/0004-6361:20020943 | bibcode=2002A&A...393..897R | arxiv=astro-ph/0205255 | s2cid=14070763 }}

{{cite journal

| display-authors=1 | last1=Tetzlaff | first1=N.

| last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M.

| title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun

| journal=Monthly Notices of the Royal Astronomical Society

| volume=410 | issue=1 | pages=190–200 | date=January 2011

| bibcode=2011MNRAS.410..190T | arxiv=1007.4883

| doi=10.1111/j.1365-2966.2010.17434.x | doi-access=free | s2cid=118629873 }}

{{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

| bibcode=2008MNRAS.389..869E | arxiv=0806.2878

| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | s2cid=14878976 }}

{{cite journal

| last1=Levato | first1=O. H.

| title=Rotational Velocities and Spectral Types of Some A-Type Stars

| journal=Publications of the Astronomical Society of the Pacific

| volume=84 | issue=500 | page=584 | date=August 1972

| doi=10.1086/129336 | bibcode=1972PASP...84..584L | doi-access=free }}

{{cite journal

| display-authors=1 | last1=Pasinetti Fracassini | first1=L. E.

| last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A.

| title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)

| edition=Third | journal=Astronomy and Astrophysics

| volume=367 | issue=2 | pages=521–524 | date=February 2001

| bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289

| doi=10.1051/0004-6361:20000451 | s2cid=425754 }}

{{cite journal

| display-authors=1 | last1=McDonald | first1=I.

| last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L.

| title=Fundamental parameters and infrared excesses of Hipparcos stars

| journal=Monthly Notices of the Royal Astronomical Society

| volume=427 | pages=343–357 | year=2012 | issue=1 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037

| doi=10.1111/j.1365-2966.2012.21873.x | doi-access=free | s2cid=118665352 }}

}}

{{Stars of Vela}}

{{DEFAULTSORT:Hd 75063}}

Category:A-type giants

Category:A-type bright giants

Category:Vela (constellation)

Velorum, a

Category:Durchmusterung objects

075063

043023

3487