Kepler-9 [SEP] constellation
Kepler-9
Kepler-9 is a sunlike star in the constellation Lyra. Its planetary system, discovered by the Kepler Mission in 2010 was the first detected with the transit method found to contain multiple planets.
Nomenclature and history.
Kepler-9 was named for the Kepler Mission, a project headed by NASA that was designed to search for Earth-like planets. Unlike stars such as Aldebaran or Sirius, Kepler-9 does not have a colloquial name.
In June 2010, some 43 days after Kepler came online, its operating scientists submitted
discovered with more than three transiting planets, and is also part of the most compact and flat system yet discovered. Kepler-11's planetary system is the second known system to have multiple transiting planets, surpassing the three confirmed planets (two transiting) orbiting the star Kepler-9.
Host star.
Kepler-11 is a sunlike star in the constellation Cygnus that has a mass of 0.95 (± 0.1) M and a radius of 1.1 (± 0.1) R. In other words, Kepler-11 is approximately 5% less massive and 10%