OGLE2-TR-L9b

OGLE2-TR-L9b is an extrasolar planet discovered by three undergraduate students from Leiden University, Netherlands. The planet is about 4.5 times as massive as Jupiter and is the first discovered planet orbiting a fast-rotating hot star.^[2]

OGLE2-TR-L9b

Artist impression of OGLE2-TR-L9b and its star
Discovery
Discovered by	Meta de Hoon Remco van der Burg Francis Vuijsje
Discovery date	December 2, 2008
Detection method	Transit
Orbital characteristics
Orbital period (sidereal)	2.4855335 ± 0.0000007 d 59.6528 h
Star	OGLE2-TR-L9
Physical characteristics
Mean radius	1.958+0.174 −0.111[1] RJ
Mass	4.5 ± 1.5 MJ[2]

Initially discovered while testing a method for investigating light fluctuations in the OGLE database, the planet's existence was later confirmed by follow-up observations from the ESO's Very Large Telescope in Chile.^[2]

See also

• Optical Gravitational Lensing Experiment OGLE
• OGLE-TR-113b
• OGLE-TR-10b
• OGLE-TR-111b
• OGLE-TR-56b