HIP 64613 is a red pulsating variable star that can be located in the constellation of Centaurus. 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.
HIP64613 is the reference name for the star in the Hipparcos Star Catalogue.
HIP 64613 has alternative name(s) :- , V957 Cen.
More details on star alternative names can be found at Star Names .
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 HIP 64613, the location is 13h 14m 36.38 and -31° 25` 10.7 .
HIP 64613 has a spectral type of Mp. This means the star is a red variable star. The star has a B-V Colour Index of 1.64 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 3,659 Kelvin.
HIP 64613 has an apparent magnitude of 11.33 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. Using the supplied 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 -1.90 which gave the calculated distance to HIP 64613 as -1716.65 light years away from Earth or -526.32 parsecs. It would take a spaceship travelling at the speed of light, -1716.65 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.
The star is a pulsating Semi-Regular Star which are giants or supergiants of intermediate and late spectral 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. HIP 64613 brightness ranges from a magnitude of 11.781 to a magnitude of 11.115 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.4 days (variability).
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.
|Alternative Names||HIP 64613, V957 Cen|
|Multiple Star System||No / Unknown|
|Star Type||Variable Star|
|Visual / Apparent Magnitude||11.33|
|Naked Eye Visible||Requires a 4.5 - 6 Inch Telescope - Magnitudes|
|Right Ascension (R.A.)||13h 14m 36.38|
|Declination (Dec.)||-31° 25` 10.7|
|Galactic Latitude||31.19 degrees|
|Galactic Longitude||308.71 degrees|
|Distance from Earth||-1.90 Parallax (milliarcseconds)|
|-1716.65 Light Years|
|Variable Star Class||Pulsating|
|Variable Star Type||Semi-Regular Star which are giants or supergiants of intermediate and late spectral|
|Mean Variability Period in Days||0.393|
|Variable Magnitude Range (Brighter - Dimmer)||11.115 - 11.781|
|Calculated Effective Temperature||3,659 Kelvin|