Universe Guide

10 Ursae Majoris - HD76943 - HIP44248

10 Ursae Majoris is a blue to white main sequence dwarf star that can be located in the constellation of Lynx. HIP is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD. 10 Ursae Majoris has alternative name(s), 10 Lyncis.

Location of 10 Ursae Majoris

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 Ursae Majoris, the location is 09h 00m 38.75 and +41 d 47`00.4 .

Physical Properties/View of 10 Ursae Majoris

10 Ursae Majoris has a spectral type of F5V. This means the star is (F) blue to white coloured (V) main sequence (dwarf star). 10 Ursae Majoris lies at a distance of 53.59 light years away from our Sun and our planet Earth or to put it another way, 16.25 parsecs away from the Sun.

10 Ursae Majoris has an apparent magnitude of 3.96 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 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. The stars temperature has been calculated at between 6000 and 7500 based on the Class Type and lookup at Wikipedia-Stellar Classification

Source of Information

The source of the information came 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.

10 Ursae Majoris Facts


Traditional Name10 Ursae Majoris
Alternative Name(s)10 Lyncis
Hipparcos Library I.D.44248
Henry Draper Designation76943
Celestial TypeStar
Apparent Magnitude3.96
Right Ascension (R.A.)09h 00m 38.75
Declination (Dec.)+41 d 47`00.4
Distance from the Sun / Earth53.59 Light Years
Spectral TypeF5V
Colour (F) blue to white
Star Type (IV) subgiant.
Variable Star ClassConstant, non-variable
Calculated Temperature Range6,000.00 - 7,500.00


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