Obs. : 2014-05-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.930e+11
Venus      3.923e+11
Earth      4.141e+11
Mars       3.901e+11
Jupiter    3.955e+11
Saturn     4.066e+11
Uranus     3.923e+11
Neptune    4.027e+11
Pluto      4.219e+11