HARPS-N instrument will help confirm Kepler's planet finds
Tuesday, February 15, 2011 - 15:00
in Astronomy & Space
(PhysOrg.com) -- The search for planets outside our solar system continues to heat up. NASA's Kepler spacecraft has located more than 1,200 planetary candidates, however confirming them remains a challenge. In some circumstances, an eclipsing binary star can mimic the shallow dimming due to a planet crossing in front of its star. Ground-based measurements are needed to verify an orbiting world by spotting the gravitational wobbles it induces in its host star, in a method known as radial velocity.