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HIP 66317

HIP 66317 is a 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.

HIP 66317's Alternative Names

HIP66317 is the reference name for the star in the Hipparcos Star Catalogue.

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

Location of HIP 66317

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 66317, the location is 13h 35m 30.50 and -41° 18` 20.5 .

Proper Motion of HIP 66317

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 -9.24 ± 3.05 miliarcseconds/year towards the north and -11.32 ± 5.03 miliarcseconds/year east if we saw them in the horizon.

Physical Properties of HIP 66317

HIP 66317 has a spectral type of R.

HIP 66317 Apparent and Absolute Magnitudes

HIP 66317 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. If you used the 1997 Parallax value, you would get an absolute magnitude of If you used the 2007 Parallax value, you would get an absolute magnitude of 2.54. 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.

Distance to HIP 66317

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.97 which gave the calculated distance to HIP 66317 as -3362.51 light years away from Earth or -1030.93 parsecs. It would take a spaceship travelling at the speed of light, -3362.51 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

In 2007, Hipparcos data was revised with a new parallax of 1.07 which put HIP 66317 at a distance of 3048.26 light years or 934.58 parsecs. It should not be taken as though the star is moving closer or further away from us. It is purely that the distance was recalculated.

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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HIP 66317 Facts

Visual Facts


Primary / Proper / Traditional NameHIP 66317
Alternative NamesHIP 66317
Spectral TypeR
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationCentaurus
Visual / Apparent Magnitude12.39
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)13h 35m 30.50
Declination (Dec.)-41° 18` 20.5
Galactic Latitude20.81 degrees
Galactic Longitude311.77 degrees
1997 Distance from Earth-0.97 Parallax (milliarcseconds)
 -3362.51 Light Years
 -1030.93 Parsecs
2007 Distance from Earth1.07 Parallax (milliarcseconds)
 3048.26 Light Years
 934.58 Parsecs
Proper Motion Dec.-9.24 ± 3.05 milliarcseconds/year
Proper Motion RA.-11.32 ± 5.03 milliarcseconds/year
B-V Index-99.00

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


SIMBAD SourceLink

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