Universe Guide

310 G. Centauri

310 G. Centauri Facts

  • 310 G. Centauri is a supergiant star that can be located in the constellation of Centaurus. The description is based on the spectral class.
  • 310 G. Centauri is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (B0Ia) of the star, the star's colour is blue .
  • The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.
  • Using the most recent figures given by the 2007 Hipparcos data, the star is 6523.27 light years away from us. Distance

310 G. Centauri's Alternative Names

HIP68902 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD122879.

310 G. Centauri has alternative name(s) :- , NSV 06544.

The Gould star designation is one that was designed by American astronomer, Benjamin Apthorp Gould. Gould stars are predominantly in the Southern and Equatorial constellations but do appear in northern constellations such as Bootes and Orion. The star has the designation 310 G. Centauri. There are no stars with a Gould designation in Ursa Major for example.

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

Location of 310 G. Centauri

The location of the supergiant 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 310 G. Centauri, the location is 14h 06m 25.16 and -59° 42` 57.2 .

Radial Velocity and Proper Motion of 310 G. Centauri

Proper Motion

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 0.30 ± 0.32 milliarcseconds/year towards the north and -2.21 ± 0.48 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 2.00000 km/s with an error of about 4.30 km/s . 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.

Physical Properties of 310 G. Centauri

310 G. Centauri Temperature and Colour

Based on the star's spectral type of B0Ia , 310 G. Centauri's colour and type is blue supergiant star. The star has a B-V Colour Index of 0.07 which means the star's temperature is about 8,878 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

310 G. Centauri Radius

310 G. Centauri Apparent and Absolute Magnitudes

310 G. Centauri has an apparent magnitude of 6.39 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 -5.12. 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 310 G. Centauri

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.05000 which gave the calculated distance to 310 G. Centauri as -65232.67 light years away from Earth or -20000 parsecs. If you want that in miles, it is about -383,478,429,022,513,280.54, based on 1 Ly = 5,878,625,373,183.61 miles.

In 2007, Hipparcos data was revised with a new parallax of 0.50000 which put 310 G. Centauri at a distance of 6523.27 light years or 2000 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.

Using the 2007 distance, the star is roughly 412,526,737.97 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.

Travel Time to 310 G. Centauri

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Airbus A3807365,943,768,121.54
Speed of Sound (Mach 1)767.2695,701,537,970.98
Concorde (Mach 2)1,534.542,850,765,270.02
New Horizons Probe33,000132,564,040.53
Speed of Light670,616,629.006,523.27
310 G. Centauri brightness ranges from a magnitude of 6.479 to a magnitude of 6.432 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.0 days (variability).

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 310 G. Centauri Facts and Figures

Visual Facts

Primary / Proper / Traditional Name310 G. Centauri
Alternative NamesHD 122879, HIP 68902, NSV 06544
Spectral TypeB0Ia
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type very luminous Supergiant Star
GalaxyMilky Way
Absolute Magnitude / -5.12
Visual / Apparent Magnitude6.39
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)14h 06m 25.16
Declination (Dec.)-59° 42` 57.2
Galactic Latitude1.79052511 degrees
Galactic Longitude312.26296514 degrees
1997 Distance from Earth-0.05000 Parallax (milliarcseconds)
 -65232.67 Light Years
 -20000 Parsecs
2007 Distance from Earth0.50000 Parallax (milliarcseconds)
 6523.27 Light Years
 2000 Parsecs
 412,526,737.97 Astronomical Units
Proper Motion Dec.0.30000 ± 0.32000 milliarcseconds/year
Proper Motion RA.-2.21000 ± 0.48000 milliarcseconds/year
B-V Index0.07
Radial Velocity2.00000 ± 4.30 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Mean Variability Period in Days0.038
Variable Magnitude Range (Brighter - Dimmer)6.432 - 6.479

Estimated Calculated Facts

Effective Temperature8,878 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

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