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high-velocity star
A star traveling faster than 60 to 100 km/s (definitions vary) relative to the average motion of star's in the solar neighborhood. High-velocity stars belong to the halo population and travel around the galactic center in eccentric orbits, often of large inclination to the galactic plane.
Related category
• TYPES OF STARAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History