Universe Guide

10 Canis Majoris - HD48917 - HIP32292

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

Location of 10 Canis 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 Canis Majoris, the location is 06h 44m 28.47 and -31 d 04 ` 13.9 .

Physical Properties/View of 10 Canis Majoris

10 Canis Majoris has a spectral type of B2V. This means the star is (B) blue coloured (V) main sequence (dwarf star). 10 Canis Majoris lies at a distance of 2,609.31 light years away from our Sun and our planet Earth or to put it another way, 799.91 parsecs away from the Sun.

10 Canis Majoris has an apparent magnitude of 5.23 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 10 Canis Majoris has an absolute magnitude of -4.29 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 star's temperature has been calculated at being about 13,000 Kelvin. (Based on the b-v value of -0.12 and the lookup on SDSS.)

10 Canis Majoris Radius has been calculated as being 13.28 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 9,237,259.66. km.

Variable Type of 10 Canis Majoris

The star is a eruptive Gamma Cassiopeiae variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted. 10 Canis Majoris brightness ranges from a magnitude of 5.000 to a magnitude of 5.000 over its variable period. The smaller the magnitude, the brighter the star.

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 Canis Majoris Facts

Traditional Name10 Canis Majoris
Short NameFT CMa
Alternative Name(s)10 Canis Majoris
Hipparcos Library I.D.32292
Henry Draper Designation48917
Celestial TypeStar
Absolute Magnitude-4.29
Apparent Magnitude5.23
Right Ascension (R.A.)06h 44m 28.47
Declination (Dec.)-31 d 04 ` 13.9
Distance from the Sun / Earth2,609.31 Light Years
Spectral TypeB2V
Colour (B) blue
Star Type (IV) subgiant.
Variable Star ClassEruptive
Variable Star TypeGamma Cassiopeiae
Variable Magnitude Range (Brighter - Dimmer)5.000 - 5.000
Radius (x the Sun)13.28
Calculated Temperature Range10,000.00 - 30,000.00

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