Universe Guide

118 G. Psc - HD8949 - HIP6868

118 G. Psc is an orange to red giant star that can be located in the constellation of Pisces. HIP6868 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD8949. The Id of the star in the Gould Star Catalogue is 118. Stars in the southern hemisphere are more likely to have a Gould Id than the northern hemisphere. For example, there are no Gould classified stars in Ursa Major.

Location of 118 G. Psc

The location of the star in the galaxy 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 from celestial equator. The Declination is how up or down compared to the celestial equator and is expressed in degrees. For 118 G. Psc, the location is 01h 28m 22.85 and +07 d 57`40.9 .

Proper Motion of 118 G. Psc

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 -009.00 ± 000.00 towards the north and 111.00 ± 000.00 east if we saw them in the horizon.

Physical Properties (Colour, Temperature, Radius) of 118 G. Psc

118 G. Psc has a spectral type of K1IIIvar. This means the star is an orange to red coloured giant star. The star has a B-V Colour Index of 1.11 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 4,646 Kelvin.

118 G. Psc has been calculated as 9.14 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 6,356,524.13.km.

118 G. Psc Apparent and Absolute Magnitudes

118 G. Psc has an apparent magnitude of 6.22 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 0.99 If you used the 2007 Parallax value, you would get an absolute magnitude of 0.99. 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 118 G. Psc

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 9.00 which gave the calculated distance to 118 G. Psc as 362.40 light years away from us or 111.11 parsecs. In 2007, Hipparcos data was revised with a new parallax of 9.00 which put 118 G. Psc at a distance of 362.40 light years or 111.11 parsecs.

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 Stellar Age, Metallicity or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

118 G. Psc Facts


Traditional Name118 G. Psc
Hipparcos Library I.D.6868
Gould I.D.118
Henry Draper Designation8949
Celestial TypeStar
Absolute Magnitude0.99 / 0.99
Apparent Magnitude6.22
Right Ascension (R.A.)01h 28m 22.85
Declination (Dec.)+07 d 57`40.9
1997 Distance9.00 Parallax (milliarcseconds)
 362.40 Light Years
 111.11 Parsecs
2007 Distance9.00 Parallax (milliarcseconds)
 362.40 Light Years
 111.11 Parsecs
Proper Motion Dec.-9.00 ± 0.00 milliarcseconds/year
Proper Motion RA.111.00 ± 0.00 milliarcseconds/year
B-V Index1.11
Spectral TypeK1IIIvar
Colour(K) Orange to Red
Star Typegiant star
Radius (x the Sun)9.14
Calculated Effective Temperature4,646 Kelvin


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