HIP31481 is the reference name for the star in the Hipparcos Star Catalogue.
RR Pictoris has alternative name(s) :- , RR Pic.
More details on objects' alternative names can be found at Star Names .
The location of the main sequence 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 object is compared to the celestial equator and is expressed in degrees. For RR Pictoris, the location is 06h 35m 36.06 and -62° 38` 24.3 .
RR Pictoris has a spectral type of pec(NOVA).
RR Pictoris has an apparent magnitude of 12.39 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 -2.46 which gave the calculated distance to RR Pictoris as -1325.87 light years away from Earth or -406.50 parsecs. If you want that in miles, it is -889,150,469,892.
RR Pictoris brightness ranges from a magnitude of 12.604 to a magnitude of 12.153 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.3 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.
|Primary / Proper / Traditional Name||RR Pictoris|
|Alternative Names||HIP 31481, RR Pic|
|Constellation's Main Star||No|
|Multiple Star System||Yes|
|Star Type||Main Sequence Dwarf Star|
|Visual / Apparent Magnitude||12.39|
|Naked Eye Visible||Requires a 4.5 - 6 Inch Telescope - Magnitudes|
|Right Ascension (R.A.)||06h 35m 36.06|
|Declination (Dec.)||-62° 38` 24.3|
|Galactic Latitude||-25.67 degrees|
|Galactic Longitude||272.35 degrees|
|Distance from Earth||-2.46 Parallax (milliarcseconds)|
|-1325.87 Light Years|
|-83,846,059.49 Astronomical Units|
|Mean Variability Period in Days||0.329|
|Variable Magnitude Range (Brighter - Dimmer)||12.153 - 12.604|
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|
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