Obs. : 2009-08-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.459e+11
Venus      3.458e+11
Earth      3.465e+11
Mars       3.465e+11
Jupiter    3.465e+11
Saturn     3.459e+11
Uranus     3.471e+11
Neptune    3.465e+11
Pluto      3.512e+11