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WW Andromedae

WW Andromedae Facts

WW Andromedae's Alternative Names

HIP117143 is the reference name for the star in the Hipparcos Star Catalogue.

WW Andromedae has alternative name(s) :- WW And, WW And.

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

Radial Velocity and Proper Motion of WW Andromedae

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 -5.05 ± 1.46 milliarcseconds/year towards the north and 1.93 ± 2.25 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 -17.00 km/s with an error of about 10.00 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.

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Metallicity and/or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

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Additional WW Andromedae Facts and Figures

Visual Facts


Primary / Proper / Traditional NameWW Andromedae
Alternative NamesWW And, HIP 117143, WW And
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationAndromeda
Galactic Latitude-15.63 degrees
Galactic Longitude110.95 degrees
Distance from Earth1.56 Parallax (milliarcseconds)
 2090.79 Light Years
 641.03 Parsecs
 132,221,007.42 Astronomical Units
Proper Motion Dec.-5.05 ± 1.46 milliarcseconds/year
Proper Motion RA.1.93 ± 2.25 milliarcseconds/year
Radial Velocity-17.00 ± 10.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassEclipsing
Variable Star TypeBeta Persei (Algol)/
Variable Magnitude Range (Brighter - Dimmer)10.929 - 11.154

Sources and Links


SIMBAD SourceLink

Related Stars


Comments and Questions

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