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12 Aurigae, HD33988

12 Aurigae is a blue main sequence dwarf star that can be located in the constellation of Auriga. The description is based on the spectral class. 12 Aurigae is not part of the constellation but is within the borders of the constellation.

12 Aurigae's Alternative Names

The Id of the star in the Henry Draper catalogue is HD33988.

Flamsteed designations are named after the creator, Sir John Flamsteed. Sir John numbered the stars in the constellation with a number and the latin name, this star's Flamsteed designation is 12 Aurigae with it shortened to 12 Aur.

More details on star alternative names can be found at Star Names .

Location of 12 Aurigae

The location of the star in the night sky 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 along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the star is compared to the celestial equator and is expressed in degrees. For 12 Aurigae, the location is 05h 16m 27.0824322868 and +46° 24` 57.814505109 .

Radial Velocity and Proper Motion of 12 Aurigae

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 -1.29 miliarcseconds/year towards the north and -2.96 miliarcseconds/year east if we saw them in the horizon.

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is -32.90 km/s . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

Physical Properties (Colour) of 12 Aurigae

12 Aurigae has a spectral type of B2Ve C. This means the star is a blue main sequence dwarf star. }

Distance to 12 Aurigae

The Parallax of the star is given as 1.39 which gives a calculated distance to 12 Aurigae of 2348.86 light years from the Earth or 720.15 parsecs. It would take a spaceship travelling at the speed of light, 2348.86 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 148,540,565.17 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.

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12 Aurigae Facts

Visual Facts


Primary / Proper / Traditional Name12 Aurigae
Alternative NamesHD 33988, 12 Aur
Spectral TypeB2Ve C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type main sequence Dwarf Star
Colour blue
GalaxyMilky Way
ConstellationAuriga
Right Ascension (R.A.)05h 16m 27.0824322868
Declination (Dec.)+46° 24` 57.814505109
Distance from Earth1.39 Parallax (milliarcseconds)
 2348.86 Light Years
 720.15 Parsecs
 148,540,565.17 Astronomical Units
Proper Motion Dec.-1.29 milliarcseconds/year
Proper Motion RA.-2.96 milliarcseconds/year
Radial Velocity-32.90 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Related Stars


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