Universe Guide

104 Aquarii - HD222574 - HIP116901

104 Aquarii is a white to yellow luminous giant star that can be located in the constellation of Aquarius. 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. The Id of the star in the Gould Star Catalogue is . Stars in the southern hemisphere are more likely to have a Gould Id than the northern hemisphere. For example, there are no Gould classified stars in Ursa Major. 104 Aquarii has alternative name(s), 104 Aquarii.

Location of 104 Aquarii

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 104 Aquarii, the location is 23h 41m 45.80 and -17 d 48`59.5 .

Physical Properties/View of 104 Aquarii

104 Aquarii has a spectral type of G2Ib/II. This means the star is (G) white to yellow coloured (II) luminous giant. 104 Aquarii lies at a distance of 643.32 light years away from our Sun and our planet Earth or to put it another way, 197.14 parsecs away from the Sun.

104 Aquarii has an apparent magnitude of 4.82 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. 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.

104 Aquarii Facts


Traditional Name104 Aquarii
Alternative Name(s)104 Aquarii
Hipparcos Library I.D.116901
Gould I.D.257
Henry Draper Designation222574
Celestial TypeStar
Apparent Magnitude4.82
Right Ascension (R.A.)23h 41m 45.80
Declination (Dec.)-17 d 48`59.5
Distance from the Sun / Earth643.32 Light Years
Spectral TypeG2Ib/II
Colour (G) white to yellow
Star Type (III) giant.
Variable Star ClassConstant, non-variable
Calculated Temperature Range5,200.00 - 6,000.00


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