Universe Guide

HD 210875

HD 210875 Facts

  • HD 210875 is a star that can be located in the constellation of Cepheus. The description is based on the spectral class.
  • HD 210875 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (A2 D ~) of the star, the star's colour is blue - white .

HD 210875's Alternative Names

The Id of the star in the Henry Draper catalogue is HD210875.

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

Location of HD 210875

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 object is compared to the celestial equator and is expressed in degrees. For HD 210875, the location is 22 11 44.7885 and +57 42 58.189 .

Radial Velocity and Proper Motion of HD 210875

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 11.10 milliarcseconds/year towards the north and 21.80 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 -19.00000 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 of HD 210875

HD 210875 Temperature and Colour

Based on the star's spectral type of A2 D ~ , HD 210875's colour and type is blue - white star. Based on the star's spectral, the stars temperature is between 7,500.00 and 10,000.00 degrees kelvin.

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Additional HD 210875 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 210875
Alternative NamesHD 210875
Spectral TypeA2 D ~
Constellation's Main Star No
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Right Ascension (R.A.)22 11 44.7885
Declination (Dec.)+57 42 58.189
Proper Motion Dec.11.10000 milliarcseconds/year
Proper Motion RA.21.80000 milliarcseconds/year
Radial Velocity-19.00000 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range7,500.00 - 10,000.00

Sources and Links


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