Obs. : 2012-04-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.088e+11
Venus      4.130e+11
Earth      4.362e+11
Mars       4.488e+11
Jupiter    4.088e+11
Saturn     4.400e+11
Uranus     4.088e+11
Neptune    4.120e+11
Pluto      4.144e+11