Universe Guide

13 Orionis - HD33021 - HIP23852

13 Orionis is a white to yellow subgiant star that can be located in the constellation of Orion. 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. 13 Orionis has alternative name(s), 13 Orionis.

Location of 13 Orionis

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 Orionis, the location is 05h 07m 38.32 and +09 d 28 ` 21.8 .

Physical Properties/View of 13 Orionis

13 Orionis has a spectral type of G1IV. This means the star is (G) white to yellow coloured (IV) subgiant. 13 Orionis lies at a distance of 92.29 light years away from our Sun and our planet Earth or to put it another way, 28.21 parsecs away from the Sun.

13 Orionis has an apparent magnitude of 6.15 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 13 Orionis has an absolute magnitude of 3.89 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 5200 and 6000 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 Orionis Facts

Traditional Name13 Orionis
Alternative Name(s)13 Orionis
Hipparcos Library I.D.23852
Henry Draper Designation33021
Celestial TypeStar
Absolute Magnitude3.89
Apparent Magnitude6.15
Right Ascension (R.A.)05h 07m 38.32
Declination (Dec.)+09 d 28 ` 21.8
Distance from the Sun / Earth92.29 Light Years
Spectral TypeG1IV
Colour (G) white to yellow
Star Type (VI) subdwarf star.
Variable Star ClassConstant, non-variable
Calculated Temperature Range5,200.00 - 6,000.00

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