HD 75063

Last updated
HD 75063
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Vela
Right ascension 08h 46m 01.64391s [1]
Declination −46° 02 29.5042 [1]
Apparent magnitude  (V)3.87 [2]
Characteristics
Spectral type A1III [3] or A0 II [4]
B−V color index 0.015±0.029 [2]
Astrometry
Radial velocity (Rv)+23.2±0.3 [2]  km/s
Proper motion (μ)RA: −12.82 [1]   mas/yr
Dec.: +4.23 [1]   mas/yr
Parallax (π)1.76 ± 0.14 [1]   mas
Distance 1,900 ± 100  ly
(570 ± 50  pc)
Absolute magnitude  (MV)−4.89 [2]
Details
Mass 8.6±0.3 [5]   M
Radius 4.5 [6]   R
Luminosity 8,669.71 [2]   L
Temperature 8,023 [7]   K
Rotational velocity (v sin i)30 [8]  km/s
Age 30.6±2.6 [5]   Myr
Other designations
a Vel, CD–45°4517, HD  75063, HIP  43023, HR  3487, SAO  220422 [9]
Database references
SIMBAD data

HD 75063 is a single [10] 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 [2] 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. [2] It is drifting further away with a radial velocity of +23 km/s. [2]

This object has been stellar classifications of A1III [3] and A0 II, [4] matching a massive A-type giant or bright giant star, respectively. It is an estimated 31 [5]  million years old and is spinning with a projected rotational velocity of 30 km/s. [8] The star has 8.6 [5] times the mass of the Sun and around 4.5 [6] times the Sun's radius. The star is radiating 8,670 [2] times the Sun's luminosity from its photosphere at an effective temperature of 8,023 K. [7]

Related Research Articles

Psi Scorpii, which is Latinized from ψ Scorpii, is a star in the zodiac constellation of Scorpius. It is white in hue and has an apparent visual magnitude of 4.94, which is bright enough to be faintly visible to the naked eye. Based upon parallax measurements, it is located at a distance of around 162 light years from the Sun. Data collected during the Hipparcos mission suggests it is an astrometric binary, although nothing is known about the companion. The system is drifting closer to the Sun with a radial velocity of −5 km/s.

Omicron Serpentis is a solitary star in the Serpens Cauda (tail) section of the equatorial constellation Serpens. Based upon an annual parallax shift of 18.83 mas as seen from Earth, it is located around 173 light years from the Sun. The star is visible to the naked eye with a base apparent visual magnitude of +4.26.

Sigma Sculptoris, Latinized from σ Sculptoris, is a solitary, white-hued star in the southern constellation of Sculptor. It is faintly visible to the naked eye with an apparent visual magnitude of +5.54. Based upon an annual parallax shift of 14.04 mas as seen from Earth, it is located about 232 light years from the Sun.

Sigma Tauri Star in the constellation Taurus

Sigma Tauri is the Bayer designation for a pair of white-hued stars in the zodiac constellation of Taurus. The system is a visual double star, whose components are designated σ1 Tauri and σ2 Tauri, with the latter being the more northerly star. The two are separated by 7.2 arcminutes on the sky and can be readily split with a pair of binoculars. They have apparent visual magnitudes of +5.07 and +4.70, respectively, which indicated they are both visible to the naked eye. Based upon parallax measurements, σ1 Tauri is about 147 light years from the Sun, while σ2 Tauri is 156 light years distant.

Kappa Trianguli Australis Variable star in the constellation Triangulum Australe

Kappa Trianguli Australis is a star in the constellation Triangulum Australe.

Tau Virginis Star in the constellation Virgo

Tau Virginis is a single star in the zodiac constellation Virgo. With an apparent visual magnitude of 4.28, it is faintly visible to the naked eye. The distance to Tau Virginis, based upon parallax measurements, is approximately 225 light years with a margin of error of ±3 light years.

HD 83183 is a single star in the southern constellation of Carina. It has the Bayer designation h Carinae, while HD 83183 is the star's identifier from the Henry Draper catalogue. The star is blue-white in hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.08. It is located at a distance of approximately 1,330 light years based on parallax, and is drifting further away with a radial velocity of +18 km/s. O. J. Eggen identified it as a member of the Pleiades group of co-moving stars.

N Carinae is a single star in the constellation Carina, just to the northeast of the prominent star Canopus. This object has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.35. Based on parallax, it is located at a distance of approximately 1,360 light years from the Sun. It has an absolute magnitude of −3.75, and is drifting further away with a radial velocity of +22.5 km/s.

HD 102776, also known by its Bayer designation j Centauri, is a suspected astrometric binary star system in the southern constellation of Centaurus. It has a blue-white hue and is faintly visible to the naked eye with a typical apparent visual magnitude of 4.30. The distance to this star is approximately 600 light years based on parallax, and it is drifting further away with a radial velocity of ~29 km/s. It is a member of the Lower Centaurus Crux subgroup of the Sco OB2 association. HD 102776 has a relatively large peculiar velocity of 31.1 km/s and is a candidate runaway star that was ejected from its association, most likely by a supernova explosion.

HD 125288 is a single star in the southern constellation of Centaurus. It has the Bayer designation v Centauri ; while HD 125288 is the star's identifier in the Henry Draper catalogue. The object has a blue-white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.30. Based on parallax measurements, it is located at a distance of approximately 1,230 light years from the Sun. This is a candidate runaway star that is moving to the west and falling back into the Galactic plane. It has an absolute magnitude of −3.56.

Sigma Columbae, Latinized from σ Columbae, is a solitary, yellow-white hued star in the southern constellation of Columba. It is faintly visible to the naked eye with an apparent visual magnitude of 5.51. Based upon an annual parallax shift of 1.96 mas as seen from Earth, this star is located roughly 1,700 light years from the Sun.

HD 75710 is a single star in the constellation of Vela. It has an apparent visual magnitude of approximately 4.94, which is bright enough to be faintly visible to the naked eye. Based upon an annual parallax shift of 2.7 mas, it is located about 1,200 light years from the Sun.

VZ Arietis is single, white-hued star in the northern zodiac constellation of Aries. Varying between magnitudes 5.82 and 5.89, the star can be seen with the naked eye in dark, unpolluted areas. Based upon an annual parallax shift of 5.8 mas, it is located 560 light years from the Sun. It is moving further away with a heliocentric radial velocity of +14 km/s. The star was formerly known as 16 Trianguli, but as the star is no longer in the constellation Triangulum, this designation has fallen out of use.

1 Scorpii, or b Scorpii, is a single star in the southern zodiac constellation of Scorpius. It has an apparent magnitude of 4.63, which is bright enough to be faintly visible to the naked eye on a dark night. The star shows an annual parallax shift of 6.59 mas from Earth's orbit, which equates to a distance of roughly 490 light years. It is a probable member of the Sco OB2 moving group.

HD 24479 is a single star located in the constellation Camelopardalis. It is also known as HR 1204. The star is visible to the naked eye with an apparent visual magnitude of 4.95. Based upon an annual parallax shift of 9.04±0.29 mas as seen from Earth's orbit, it is located around 360 light years from the Sun.

Psi<sup>2</sup> Piscium Star in the constellation Pisces

Psi2 Piscium (ψ2 Piscium) is a white-hued star in the zodiac constellation of Pisces. It is faintly visible to the naked eye, having an apparent visual magnitude of +5.56. Based upon an annual parallax shift of 8.66 mas as seen from Earth, it is located about 380 light years from the Sun. It has a peculiar velocity of 14.6±2.9 km/s, indicating it is a runaway star.

3 Ceti is a single, orange-hued star located around 2,100 light years away in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of 4.95. The star is moving closer to the Earth with a heliocentric radial velocity of −42 km/s. It has a peculiar velocity of 60.7+3.8
−6.2
 km/s
and is a candidate runaway star.

HD 110956 Star in the constellation Crux

HD 110956 is a star in the constellation Crux. Its apparent magnitude is 4.61.

HD 29573 is a binary star system in the constellation Eridanus. It has a combined apparent visual magnitude of 4.99, making it visible to the naked eye. Based upon an annual parallax shift of 15 mas, it is located 217 light years from the Sun. The system is moving further away from Earth with a heliocentric radial velocity of +3 km/s.

HD 85622 is a binary star system in the southern constellation of Vela. It is visible to the naked eye with an apparent visual magnitude of 4.58. The distance to HD 85622 can be estimated from its annual parallax shift of 4.3 mas, yielding a value of 750 light years. It is moving further from the Earth with a heliocentric radial velocity of +8 km/s.

References

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  2. 1 2 3 4 5 6 7 8 9 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.
  3. 1 2 Levato, O. H. (August 1972). "Rotational Velocities and Spectral Types of Some A-Type Stars". Publications of the Astronomical Society of the Pacific. 84 (500): 584. Bibcode:1972PASP...84..584L. doi:10.1086/129336.
  4. 1 2 Houk, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars. 2. Ann Arbor: Dept. of Astronomy, University of Michigan. Bibcode:1978mcts.book.....H.
  5. 1 2 3 4 Tetzlaff, N.; et al. (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. S2CID   118629873.
  6. 1 2 Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics (Third ed.). 367 (2): 521–524. arXiv: astro-ph/0012289 . Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. S2CID   425754.
  7. 1 2 McDonald, I.; et al. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv: 1208.2037 . Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID   118665352.
  8. 1 2 Royer, F.; et al. (May 2002). "Rotational velocities of A-type stars II. Measurement of vsini in the northern hemisphere". Astronomy & Astrophysics. 393: 897–912. arXiv: astro-ph/0205255 . Bibcode:2002A&A...393..897R. doi:10.1051/0004-6361:20020943. S2CID   14070763.
  9. "a Vel". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-01-22.
  10. 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.