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XX Velorum, HIP51894

XX Velorum is a pulsating variable star that can be located in the constellation of Vela. The description is based on the spectral class. The star can not be seen by the naked eye, you need a telescope to see it.

XX Velorum's Alternative Names

HIP51894 is the reference name for the star in the Hipparcos Star Catalogue.

XX Velorum has alternative name(s) :- , XX Vel.

More details on star alternative names can be found at Star Names .

Location of XX Velorum

The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the star is compared to the celestial equator and is expressed in degrees. For XX Velorum, the location is 10h 36m 08.61 and -56° 02` 35.7 .

Proper Motion of XX Velorum

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving 4.51 ± 1.13 miliarcseconds/year towards the north and -5.01 ± 1.49 miliarcseconds/year east if we saw them in the horizon. The Radial Velocity, that is the speed at which the star is moving away/towards us is 15.00000 km/s with an error of about 3.70 km/s .

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Metallicity and/or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

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XX Velorum Facts

Visual Facts


Primary / Proper / Traditional NameXX Velorum
Alternative NamesHIP 51894, XX Vel
Multiple Star SystemNo / Unknown
Star TypeVariable Star
GalaxyMilky Way
ConstellationVela
Absolute Magnitude0.94 / 1.33
Visual / Apparent Magnitude10.66
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)10h 36m 08.61
Declination (Dec.)-56° 02` 35.7
Galactic Latitude1.99 degrees
Galactic Longitude284.81 degrees
1997 Distance from Earth1.14 Parallax (milliarcseconds)
 2861.08 Light Years
 877.19 Parsecs
2007 Distance from Earth1.36 Parallax (milliarcseconds)
 2398.26 Light Years
 735.29 Parsecs
Proper Motion Dec.4.51 ± 1.13 milliarcseconds/year
Proper Motion RA.-5.01 ± 1.49 milliarcseconds/year
B-V Index-99.00
Radial Velocity15.00 ± 3.70 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassPulsating
Variable Star TypeDelta Cepheid
Mean Variability Period in Days6.985
Variable Magnitude Range (Brighter - Dimmer)10.398 - 11.275

Sources and Links


SIMBAD SourceLink

Related Stars


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