Universe Guide

HD 1989

HD 1989 Facts

  • HD 1989 is a subgiant star that can be located in the constellation of Sculptor. The description is based on the spectral class.
  • HD 1989 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (K1IV/V) of the star, the star's colour is orange to red .

HD 1989's Alternative Names

The Id of the star in the Henry Draper catalogue is HD1989.

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

Location of HD 1989

The location of the subgiant 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 1989, the location is 00 23 55.1429505624 and -31 16 23.527889484 .

Radial Velocity and Proper Motion of HD 1989

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 -114.64 milliarcseconds/year towards the north and -3.11 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 24.70000 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 1989

HD 1989 Temperature and Colour

Based on the star's spectral type of K1IV/V , HD 1989's colour and type is orange to red subgiant star. Based on the star's spectral, the stars temperature is between 3,700.00 and 5,200.00 degrees kelvin.

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Additional HD 1989 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 1989
Alternative NamesHD 1989
Spectral TypeK1IV/V
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeSubgiant Star
ColourOrange to Red
GalaxyMilky Way
Right Ascension (R.A.)00 23 55.1429505624
Declination (Dec.)-31 16 23.527889484
Proper Motion Dec.-114.64200 milliarcseconds/year
Proper Motion RA.-3.10700 milliarcseconds/year
Radial Velocity24.70000 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range3,700.00 - 5,200.00

Related Stars

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