Astronomers Discover Planet Through a Never-before-used Method

Astronomers find most exoplanets from indirect signals, noticing changes in the light of the planet’s host star instead of by seeing the planet itself. But some stars’ light changes all on its own, making these methods tricky at best. KIC 7917485b is the first exoplanet identified around a main sequence A-type star from its orbital motion, and the first found near an A -typestar’s habitable zone.

A-type stars are bigger and hotter than most stars in the Kepler catalog and tend to be noisy

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