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HIP 110933, HD213232

HIP 110933 Facts

HIP 110933's Alternative Names

HIP110933 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD213232.



Location of HIP 110933


Radial Velocity and Proper Motion of HIP 110933

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving 11.00 ± 0.44 miliarcseconds/year towards the north and 19.53 ± 0.56 miliarcseconds/year east if we saw them in the horizon.


HIP 110933 Luminosity

Luminosity is the amount of energy that a star pumps out and its relative to the amount that our star, the Sun gives out. The figure of 17.96 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

Physical Properties (Colour, Temperature) of HIP 110933

HIP 110933 has a spectral type of A5p. This means the star is a blue star. The star is 7,450.00 Parsecs from the Galactic Centre or in terms of Light Years is 24,299.17 s. The star has a B-V Colour Index of 0.14 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 7,950 Kelvin.

HIP 110933 Radius has been calculated as being 2.74 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,908,275.63.km. If you need the diameter of the star, you just need to multiple the radius by 2. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 2.31. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.

HIP 110933 Apparent and Absolute Magnitudes

HIP 110933 has an apparent magnitude of 7.99 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of 1.27 If you used the 2007 Parallax value, you would get an absolute magnitude of 1.64. 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.

Distance to HIP 110933

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 4.53 which gave the calculated distance to HIP 110933 as 720.01 light years away from Earth or 220.75 parsecs. It would take a spaceship travelling at the speed of light, 720.01 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

In 2007, Hipparcos data was revised with a new parallax of 5.38 which put HIP 110933 at a distance of 606.25 light years or 185.87 parsecs. It should not be taken as though the star is moving closer or further away from us. It is purely that the distance was recalculated.

Using the 2007 distance, the star is roughly 38,338,172.39 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.


Source of Information


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Additional HIP 110933 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHIP 110933
Alternative NamesHD 213232, HIP 110933, BD+57 2543
Spectral TypeA5p
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Absolute Magnitude 1.27 / 1.64
Visual / Apparent Magnitude7.99
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)22h 28m 34.50
Declination (Dec.)+58° 32` 23.8
Galactic Latitude0.68 degrees
Galactic Longitude105.19 degrees
1997 Distance from Earth4.53 Parallax (milliarcseconds)
 720.01 Light Years
 220.75 Parsecs
2007 Distance from Earth5.38 Parallax (milliarcseconds)
 606.25 Light Years
 185.87 Parsecs
 38,338,172.39 Astronomical Units
Galacto-Centric Distance24,299.17 Light Years / 7,450.00 Parsecs
Proper Motion Dec.11.00 ± 0.44 milliarcseconds/year
Proper Motion RA.19.53 ± 0.56 milliarcseconds/year
B-V Index0.14
Radial Velocity-24.40 ± 1.60 km/s
Semi-Major Axis6587.00
Stellar Luminosity (Lsun)17.96

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Radius (x the Sun)2.31
Effective Temperature7,950 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions


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