Kepler-12b

Kepler-12b
Discovery
Discovered byFortney et al.[1]
Discovery siteKepler spacecraft
Discovery datePublished September 5, 2011[1]
radial velocity/transit[1]
Orbital characteristics
0.0556 (± 0.0007)[2] AU
Eccentricity0.01[2]
4.4379637 (± 0.0007)[2] d
Inclination88.76 (±0.08)[2]
StarKepler-12
Physical characteristics
1.695 +0.028
−0.032[2] RJ
Mass0.431 (± 0.041)[2] MJ
Mean density
0.111 +0.011
−0.009[1] g cm−3
Temperature1711±223 K.[3]

Kepler-12b is a hot Jupiter that orbits G-type star Kepler-12 some 900 parsecs (2,900 ly) away. The planet has an anomalously large radius that could not be explained by standard models at the time of its discovery, almost 1.7 times Jupiter's size while being 0.4 times Jupiter's mass. The planet was detected by the Kepler spacecraft, a NASA project searching for planets that transit (cross in front of) their host stars. The discovery paper was published on September 5, 2011.

  1. ^ a b c d Cite error: The named reference Fortney2011 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference EPE was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Angerhausen2015 was invoked but never defined (see the help page).