CoRoT-24b

CoRoT-24b is a transiting exoplanet found by the CoRoT space telescope in 2011 and announced in 2014.^[6] Along with CoRoT-24c, it is one of two exoplanets orbiting CoRoT-24,^[5] making it the first multiple transiting system detected by the telescope. It is a hot Neptune orbiting at a distance of 0.056 AU from its host star.^[6]

CoRoT-24b

Discovery
Discovered by	CoRoT space telescope
Discovery date	2011
Detection method	Transit
Designations
Alternative names	2MASS 06474141-0343094 b, Gaia DR2 3105404467618982272 b
Orbital characteristics
Epoch J2000
Semi-major axis	0.056 ± 0.002 AU (8,380,000 ± 300,000 km)[1]
Eccentricity	0
Orbital period (sidereal)	5.1134 ± 0.0006 d
Inclination	86.5 ± 2.0 °
Star	CoRoT-24
Physical characteristics
Mean radius	0.33 ± 0.04 RJ
Mass	<0.018 MJ
Mean density	<0.9 g/cm3[2]
Surface gravity	0.4183 G🜨[3]
North pole right ascension	06h 47m 41.41s[4]
North pole declination	−03° 43′ 09.48″[4]
Temperature	1,070 K[5]

Properties

CoRoT-24b and CoRoT-24c are similar in size; however, CoRoT-24b is more than four times less massive, indicating its low density. Dr. Lammer's team modelled the planetary system and found that the atmosphere should have already evaporated a long time ago. This led to the conclusion that CoRoT-24b is not as big as previously thought, being perhaps 30 to 60 percent smaller than initially measured.^[7][8]