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HIP 65997

HIP 65997 Facts

HIP 65997's Alternative Names

HIP65997 is the reference name for the star in the Hipparcos Star Catalogue. The Gliese ID of the star is GJ 2101. The star was added to the Gliese catalogue in 1970 by Richard van der Riet Woolley hence the GJ prefix rather than GL prefix.Star Names.

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

Location of HIP 65997

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 object is compared to the celestial equator and is expressed in degrees. For HIP 65997, the location is 13h 31m 51.56 and -56° 13` 39.4 .

Proper Motion of HIP 65997

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 -290.79 ± 2.64 milliarcseconds/year towards the north and 59.97 ± 3.82 milliarcseconds/year east if we saw them in the horizon. . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

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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Additional HIP 65997 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHIP 65997
Alternative NamesHIP 65997, Gliese 2101
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationCentaurus
Absolute Magnitude 8.46 / 8.60
Visual / Apparent Magnitude12.28
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)13h 31m 51.56
Declination (Dec.)-56° 13` 39.4
Galactic Latitude6.20 degrees
Galactic Longitude308.56 degrees
1997 Distance from Earth17.22 Parallax (milliarcseconds)
 189.41 Light Years
 58.07 Parsecs
2007 Distance from Earth18.37 Parallax (milliarcseconds)
 177.55 Light Years
 54.44 Parsecs
 11,228,977.81 Astronomical Units
Proper Motion Dec.-290.79 ± 2.64 milliarcseconds/year
Proper Motion RA.59.97 ± 3.82 milliarcseconds/year
B-V Index1.36

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


SIMBAD SourceLink

Related Stars


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