Obs. : 2016-02-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.267e+11
Venus      4.267e+11
Earth      4.551e+11
Mars       4.502e+11
Jupiter    4.667e+11
Saturn     4.338e+11
Uranus     4.337e+11
Neptune    4.330e+11
Pluto      4.284e+11