Obs. : 2013-02-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.204e+11
Venus      4.355e+11
Earth      4.157e+11
Mars       4.290e+11
Jupiter    4.091e+11
Saturn     4.136e+11
Uranus     4.118e+11
Neptune    4.290e+11
Pluto      4.228e+11