Universe Guide

10 Tauri - HD22484 - HIP16852

10 Tauri is a blue to white main sequence dwarf star that can be located in the constellation of Taurus. HIP16852 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD22484. The Id of the star in the Gould Star Catalogue is 11. 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. 10 Tauri has alternative name(s), 10 Tauri , 10 Tau.

Location of 10 Tauri

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 10 Tauri, the location is 03h 36m 52.52 and +00 d 24 ` 10.2 .

Proper Motion of 10 Tauri

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 -482.00 ± 000.00 towards the north and -233.00 ± 001.00 east if we saw them in the horizon.

Physical Properties (Colour, Temperature, Radius) of 10 Tauri

10 Tauri has a spectral type of F9V. This means the star is a blue to white coloured main sequence dwarf star. The star has a B-V Colour Index of 0.57 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 6,006 Kelvin.

10 Tauri has been calculated as 1.64 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,138,103.43.km.

10 Tauri Apparent and Absolute Magnitudes

10 Tauri has an apparent magnitude of 4.29 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 3.61 If you used the 2007 Parallax value, you would get an absolute magnitude of 3.58. 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 10 Tauri

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 73.00 which gave the calculated distance to 10 Tauri as 44.68 light years away from us or 13.70 parsecs. In 2007, Hipparcos data was revised with a new parallax of 72.00 which put 10 Tauri at a distance of 45.30 light years or 13.89 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.

10 Tauri Facts


Traditional Name10 Tauri
Short Name10 Tau
Alternative Name(s)10 Tauri
Hipparcos Library I.D.16852
Gould I.D.11
Henry Draper Designation22484
Celestial TypeStar
Absolute Magnitude3.61 / 3.58
Apparent Magnitude4.29
Right Ascension (R.A.)03h 36m 52.52
Declination (Dec.)+00 d 24 ` 10.2
1997 Distance73.00 Parallax (milliarcseconds)
 44.68 Light Years
 13.70 Parsecs
2007 Distance72.00 Parallax (milliarcseconds)
 45.30 Light Years
 13.89 Parsecs
Proper Motion Dec.-482.00 ± 0.00 milliarcseconds/year
Proper Motion RA.-233.00 ± 1.00 milliarcseconds/year
B-V Index0.57
Spectral TypeF9V
Colour(F) blue to white
Star Typemain sequence dwarf star
Radius (x the Sun)1.64
Calculated Effective Temperature6,006 Kelvin


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