Kepler-9b
Kepler-9b is one of the first exoplanets to be discovered by the Kepler Space Telescope . It revolves around the sun-like star Kepler-9 in the constellation Lyra . Kepler-9b is the largest of the three planets in the Kepler system discovered by the transit method . Its mass is slightly smaller than that of the planet Saturn and it is the largest planet in its system. The planet's discovery was announced on August 26, 2010.
discovery
The star was named after the Kepler Mission, a NASA project designed to search for planets similar to Earth. The Kepler-9 planets were among 700 planetary candidates on which data was collected during Kepler's first 43 days.
The system was one of five systems that had evidence of more than one exoplanet that could be found using the transit method .
Initial estimates for the mass of Kepler-9b indicated that Kepler-9b is the larger of the two gas planets in the Kepler-9 system. Although the masses of the two gas planets differ, their composition is very similar.
properties
Kepler-9b is a gas planet approximately 0.252 Jupiter's masses . The radius is about 84.2% of the radius of Jupiter. The planet orbits its sun Kepler-9 every 19.243 days and is approximately 0.14 astronomical units from the star.
Individual evidence
- ↑ MJ Holman et al .: Kepler-9: A System of Multiple Planets Transiting a Sun-Like Star, Confirmed by Timing Variations. In: Science. 330, 2010, pp. 51-54, doi : 10.1126 / science.1195778 .
- ↑ arxiv : 1103.6020
- ↑ a b c Planet Kepler-9 b. In: exoplanet.eu. Retrieved December 28, 2013 .