We measure rotation periods for 12151 stars in the Kepler field, based on the photometric variability caused by stellar activity. Our analysis returns stable rotation periods over at least six out of ...

Flagstaff, Ariz. – Gyrochronology, a new method for accurately determining the ages of field stars based on their rotational rates, is being announced today by Sydney Barnes, Lowell Observatory ...

With the evolving technology of space telescopes allowing us to peer out beyond our solar system and see distant planets, black holes, and even some of the oldest galaxies to exist, you might imagine ...

The algorithm bases a star's age on its lithium abundance and temperature. It may one day be expanded to include other properties too. When you purchase through links on our site, we may earn an ...

Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet.