Universe Guide

105 Herculis - HD168532 - HIP89773

105 Herculis is an orange to red luminous giant star that can be located in the constellation of Hercules. 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. 105 Herculis has alternative name(s), 105 Herculis.

Location of 105 Herculis

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 105 Herculis, the location is 18h 19m 10.67 and +24 d 26 ` 45.8 .

Physical Properties/View of 105 Herculis

105 Herculis has a spectral type of K4II SB. This means the star is (K) orange to red coloured (II) luminous giant. 105 Herculis lies at a distance of 1,279.07 light years away from our Sun and our planet Earth or to put it another way, 392.13 parsecs away from the Sun.

105 Herculis has an apparent magnitude of 5.30 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 105 Herculis 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 3700 and 5200 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.

105 Herculis Facts


Traditional Name105 Herculis
Alternative Name(s)105 Herculis
Hipparcos Library I.D.89773
Henry Draper Designation168532
Celestial TypeStar
Absolute Magnitude-2.67
Apparent Magnitude5.30
Right Ascension (R.A.)18h 19m 10.67
Declination (Dec.)+24 d 26 ` 45.8
Distance from the Sun / Earth1,279.07 Light Years
Spectral TypeK4II SB
Colour (K) orange to red
Star Type (III) giant.
Variable Star ClassConstant, non-variable
Calculated Temperature Range3,700.00 - 5,200.00


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