Universe Guide

13 Cassiopeiae - HD2729 - HIP2474

13 Cassiopeiae is a blue main sequence dwarf star that can be located in the constellation of Cassiopeia. 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.

Location of 13 Cassiopeiae

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 13 Cassiopeiae, the location is 00h 31m 25.20 and +66 d 31 ` 10.7 .

Physical Properties/View of 13 Cassiopeiae

13 Cassiopeiae has a spectral type of B6V. This means the star is (B) blue coloured (V) main sequence (dwarf star). 13 Cassiopeiae lies at a distance of 716.84 light years away from our Sun and our planet Earth or to put it another way, 219.52 parsecs away from the Sun.

13 Cassiopeiae has an apparent magnitude of 6.18 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 13 Cassiopeiae has an absolute magnitude of -0.53 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 10000 and 30000 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.

13 Cassiopeiae Facts


Traditional Name13 Cassiopeiae
Hipparcos Library I.D.2474
Henry Draper Designation2729
Celestial TypeStar
Absolute Magnitude-0.53
Apparent Magnitude6.18
Right Ascension (R.A.)00h 31m 25.20
Declination (Dec.)+66 d 31 ` 10.7
Distance from the Sun / Earth716.84 Light Years
Spectral TypeB6V
Colour (B) blue
Star Type (IV) subgiant.
Variable Star ClassConstant, non-variable
Calculated Temperature Range10,000.00 - 30,000.00


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