Universe Guide

10 Lacertae - HD214680 - HIP111841

10 Lacertae is a blue main sequence dwarf star that can be located in the constellation of Lacerta. 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 Lacertae has alternative name(s), 10 Lacertae.

Location of 10 Lacertae

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 Lacertae, the location is 22h 39m 15.68 and +39 d 03 ` 01.0 .

Physical Properties/View of 10 Lacertae

10 Lacertae has a spectral type of O9V. This means the star is (O) blue coloured (V) main sequence (dwarf star). 10 Lacertae lies at a distance of 1,058.97 light years away from our Sun and our planet Earth or to put it another way, 324.38 parsecs away from the Sun.

10 Lacertae has an apparent magnitude of 4.89 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 10 Lacertae has an absolute magnitude of -2.67 which is the apparent magnitude of an object if it were 32.6 light years away or 10 parsecs from Earth. 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 30000 and based on the Class Type and lookup at Wikipedia-Stellar Classification

10 Lacertae Radius has been calculated as being 3.11 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 2,163,069.65. km.

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 Lacertae Facts


Traditional Name10 Lacertae
Alternative Name(s)10 Lacertae
Hipparcos Library I.D.111841
Henry Draper Designation214680
Celestial TypeStar
Absolute Magnitude-2.67
Apparent Magnitude4.89
Right Ascension (R.A.)22h 39m 15.68
Declination (Dec.)+39 d 03 ` 01.0
Distance from the Sun / Earth1,058.97 Light Years
Spectral TypeO9V
Colour (O) blue
Star Type (IV) subgiant.
Variable Star ClassConstant, non-variable
Radius (x the Sun)3.11


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