HIP80931 is the reference name for the star in the Hipparcos Star Catalogue.
VY Normae has alternative name(s) :- VY Nor, VY Nor.
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 VY Normae, the location is 16h 31m 33.15 and -53° 58` 23.4 .
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.
|Primary / Proper / Traditional Name||VY Normae|
|Alternative Names||VY Nor, HIP 80931, VY Nor|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Visual / Apparent Magnitude||13.12|
|Naked Eye Visible||Requires a 8 - 10 Inch Telescope - Magnitudes|
|Right Ascension (R.A.)||16h 31m 33.15|
|Declination (Dec.)||-53° 58` 23.4|
|Galactic Latitude||-3.94 degrees|
|Galactic Longitude||331.82 degrees|
|Distance from Earth||9.89 Parallax (milliarcseconds)|
|329.79 Light Years|
|20,855,289.24 Astronomical Units|
|Radial Velocity||2.00 ± 999.00 km/s|
|Variable Star Class||Pulsating|
|Variable Star Type||RR Lyrae type with a|
|Variable Magnitude Range (Brighter - Dimmer)||13.010 - 13.750|
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