Obs. : 2010-02-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.562e+11
Venus      3.737e+11
Earth      3.526e+11
Mars       3.526e+11
Jupiter    3.778e+11
Saturn     3.426e+11
Uranus     3.736e+11
Neptune    3.737e+11
Pluto      3.499e+11