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24 Tauri

24 Tauri Facts

24 Tauri's Alternative Names

The Id of the star in the Henry Draper catalogue is HD23629.

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 24 Tauri with it shortened to 24 Tau.

BD number is the number that the star was filed under in the Durchmusterung or Bonner Durchmusterung, a star catalogue that was put together by the Bonn Observatory between 1859 to 1903. The star's BD Number is BD+23 536.

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

Location of 24 Tauri

The location of the main sequence 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 object is compared to the celestial equator and is expressed in degrees. For 24 Tauri, the location is 03 47 21.0381093918 and +24 06 58.563413901 .

Radial Velocity and Proper Motion of 24 Tauri

Proper Motion

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 -45.04 miliarcseconds/year towards the north and 20.80 miliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 5.00 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 24 Tauri

24 Tauri Colour and Temperature

24 Tauri has a spectral type of A0V D ~. This means the star is a blue main sequence star.

Distance to 24 Tauri

The Parallax of the star is given as 7.45 which gives a calculated distance to 24 Tauri of 438.10 light years from the Earth or 134.32 parsecs. It would take a spaceship travelling at the speed of light, 438.10 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 27,705,295.72 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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Additional 24 Tauri Facts and Figures

Visual Facts


Primary / Proper / Traditional Name24 Tauri
Alternative NamesHD 23629, 24 Tau, BD+23 536
Spectral TypeA0V D ~
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourBlue
GalaxyMilky Way
ConstellationTaurus
Right Ascension (R.A.)03 47 21.0381093918
Declination (Dec.)+24 06 58.563413901
Distance from Earth7.45 Parallax (milliarcseconds)
 438.10 Light Years
 134.32 Parsecs
 27,705,295.72 Astronomical Units
Proper Motion Dec.-45.04 milliarcseconds/year
Proper Motion RA.20.80 milliarcseconds/year
Radial Velocity5.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=24%20Tauri

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