V767 Centauri is a blue eruptive giant star that can be located in the constellation of Centaurus. The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.
HIP67861 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD120991. The Id of the star in the Gould Star Catalogue is 285. Stars in the southern hemisphere are more likely to have a Gould Id than the northern hemisphere. For example, there are no Gould classified stars in Ursa Major.
V767 Centauri has alternative name(s), V767 Cen.
The location of the star in the galaxy 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 V767 Centauri, the location is 13h 53m 57.25 and -47 d 07`41.4 .
V767 Centauri has a spectral type of B2IIIe. This means the star is a blue giant star. The star has a B-V Colour Index of -0.05 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 10,395 Kelvin. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.
V767 Centauri has an apparent magnitude of 5.83 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is. Our own Sun is the brightest star and therefore has the lowest of all magnitudes, -26.74. A faint star will have a high number.
Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.00 which gave the calculated distance to V767 Centauri as -1 light years away from Earth or -1 parsecs. It would take a spaceship travelling at the speed of light, -1 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.
The star is a eruptive Gamma Cassiopeiae variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted. V767 Centauri brightness ranges from a magnitude of 6.021 to a magnitude of 5.760 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.3 days (variability).
|Traditional/Proper Name||V767 Centauri|
|Short Name||V767 Cen|
|Hipparcos Library I.D.||67861|
|Henry Draper Designation||120991|
|Star Type||giant star|
|Visual / Apparent Magnitude||5.83|
|Naked Eye Visible||Yes - Magnitudes|
|Right Ascension (R.A.)||13h 53m 57.25|
|Declination (Dec.)||-47 d 07`41.4|
|Galactic Latitude||14.42 degrees|
|Galactic Longitude||313.84 degrees|
|1997 Distance from Earth||0.00 Parallax (milliarcseconds)|
|-1 Light Years|
|Radial Velocity||-21.00 ± 2.90 km/s|
|Variable Star Class||Eruptive|
|Variable Star Type||Gamma Cassiopeiae|
|Mean Variability Period in Days||0.327|
|Variable Magnitude Range (Brighter - Dimmer)||5.760 - 6.021|
|Calculated Effective Temperature||10,395 Kelvin|
The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.
|Proper Motion mas/yr|
|H.D. Id||B.D. Id||Star Code||Magnitude||R.A.||Dec.||Spectrum||Colour||Year|