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54 Leonis B (Companion Star) Facts

54 Leonis B Facts

54 Leonis B's Alternative Names

The Id of the star in the Yale Bright Star Catalogue is HR4260. The Id of the star in the Henry Draper catalogue is HD94602.

54 Leonis B has alternative name(s) :- 54 Leo B.

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

Location of 54 Leonis B

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 54 Leonis B, the location is 10 55 37.2483578167 and +24 44 56.547759730 .

Radial Velocity and Proper Motion of 54 Leonis B

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 -14.90 milliarcseconds/year towards the north and -78.40 milliarcseconds/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 -1.30 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 54 Leonis B

54 Leonis B Colour and Temperature

54 Leonis B has a spectral type of A2Vn C~. This means the star is a blue - white main sequence star.

Distance to 54 Leonis B

The Parallax of the star is given as 10.17 which gives a calculated distance to 54 Leonis B of 320.56 light years from the Earth or 98.28 parsecs. It would take a spaceship travelling at the speed of light, 320.56 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 20,271,563.90 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 54 Leonis B Facts and Figures

Visual Facts


Primary / Proper / Traditional Name54 Leonis B
Alternative Names54 Leo B, HD 94602, HR 4260
Spectral TypeA2Vn C~
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourBlue
GalaxyMilky Way
ConstellationLeo
Right Ascension (R.A.)10 55 37.2483578167
Declination (Dec.)+24 44 56.547759730
Distance from Earth10.17 Parallax (milliarcseconds)
 320.56 Light Years
 98.28 Parsecs
 20,271,563.90 Astronomical Units
Proper Motion Dec.-14.90 milliarcseconds/year
Proper Motion RA.-78.40 milliarcseconds/year
Radial Velocity-1.30 km/s
Associated / Clustered Stars54 Leonis

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=hd%2094602

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