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BD Vulpeculae, Carbon Star

BD Vulpeculae Facts

Location of BD Vulpeculae

The location of the carbon 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 BD Vulpeculae, the location is 20 37 17.8441948398 and +26 29 13.101789747 .

Radial Velocity and Proper Motion of BD Vulpeculae

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 -6.28 miliarcseconds/year towards the north and -6.33 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 31.00 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 BD Vulpeculae

BD Vulpeculae has a spectral type of C5, 2e C. This means the star is a carbon red carbon star.

Distance to BD Vulpeculae

The Parallax of the star is given as 0.61 which gives a calculated distance to BD Vulpeculae of 5353.08 light years from the Earth or 1641.23 parsecs. It would take a spaceship travelling at the speed of light, 5353.08 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 338,525,629.08 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 BD Vulpeculae Facts and Figures

Visual Facts


Primary / Proper / Traditional NameBD Vulpeculae, Carbon Star
Spectral TypeC5, 2e C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeCarbon Star
ColourRed
GalaxyMilky Way
ConstellationVulpecula
Right Ascension (R.A.)20 37 17.8441948398
Declination (Dec.)+26 29 13.101789747
Distance from Earth0.61 Parallax (milliarcseconds)
 5353.08 Light Years
 1641.23 Parsecs
 338,525,629.08 Astronomical Units
Proper Motion Dec.-6.28 milliarcseconds/year
Proper Motion RA.-6.33 milliarcseconds/year
Radial Velocity31.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


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

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