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BPM 37093

Primary Facts on BPM 37093

  • BPM 37093's star type is dwarf star that can be located in the constellation of Centaurus. The description is based on the spectral class.
  • BPM 37093 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (DA4.2) of the star, the star's colour is white.
  • The star is calculated at being about 53.47 light years away from us.

Information on BPM 37093

If you got to this star first and made a claim on it, you would probably be the richest person in the galaxy. According to scientists, this star is a diamond, literally, it is a 10 billion trillion trillion carat diamond. It is a dead star that has compressed itself into a diamond. It has the nickname of Lucy after the Beetles song "Lucy in the sky with diamonds".

The diamond is estimated at being 4,000 km across. It is expected that our Sun will end up like Lucy after it has gone supernova in 5 billion years and then crystallised in another 2 billion years. Its probably not unique but its the first one to be noticed. B.B.C.

BPM 37093's Alternative Names

The Gliese ID of the star is GJ 2095. The star was added to the Gliese catalogue in 1970 by Richard van der Riet Woolley hence the GJ prefix rather than GL prefix.Star Names.

BPM 37093 has alternative name(s) :- Lucy.

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

Location of BPM 37093

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 BPM 37093, the location is 12h 38m 49.82 and -49° 48` 00.2 .

Radial Velocity and Proper Motion of BPM 37093

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 -94.00 miliarcseconds/year towards the north and -557.00 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 -21.10 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 BPM 37093

BPM 37093 has a spectral type of DA4.2. This means the star is a white dwarf star.

Distance to BPM 37093

The Parallax of the star is given as 61.00 which gives a calculated distance to BPM 37093 of 53.47 light years from the Earth or 16.39 parsecs. It would take a spaceship travelling at the speed of light, 53.47 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 3,380,656.62 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 BPM 37093 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameBPM 37093
Alternative NamesLucy, Gliese 2095
Spectral TypeDA4.2
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeDwarf Star
Colour white
GalaxyMilky Way
ConstellationCentaurus
Right Ascension (R.A.)12h 38m 49.82
Declination (Dec.)-49° 48` 00.2
Distance from Earth61.00 Parallax (milliarcseconds)
 53.47 Light Years
 16.39 Parsecs
 3,380,656.62 Astronomical Units
Proper Motion Dec.-94.00 milliarcseconds/year
Proper Motion RA.-557.00 milliarcseconds/year
Radial Velocity-21.10 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Related Stars


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