dwarf star

Light From An Ultra-Cool Neighbor

Light From An Ultra-Cool Neighbor

This animation shows the amount of light detected by each pixel in a small section of the camera onboard NASA's Kepler space telescope. The light collected from TRAPPIST-1, an ultra-cool dwarf star approximately 40 light-years from Earth, is at the center of the image. Not directly visible in the movie are the seven Earth-size planets that orbit TRAPPIST-1.