The system Kepler-444 formed when the Milky Way galaxy was a youthful two billion years old. The planets were detected from the dimming that occurs when they transit the disc of their parent star, as shown in this artist’s conception. Credit: NASA
Read more at: http://phys.org/news/2015-06-circular-orbits-small-exoplanets.html#jCp
Kepler 444 a