How to Find a Tiny Wobble in a Zippy Star

This image shows the star VB 10 moving across the sky over a period of nine years. Astronomers nabbed a planet circling this star using a method called astrometry -- the first successful application of the method to planet hunting.

This image shows the star VB 10 moving across the sky over a period of nine years. Astronomers nabbed a planet circling this star using a method called astrometry -- the first successful application of the method to planet hunting.

VB 10PlanetQuest