Obs. : 2015-10-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.638e+11
Venus      4.486e+11
Earth      3.785e+11
Mars       4.582e+11
Jupiter    4.582e+11
Saturn     4.316e+11
Uranus     3.751e+11
Neptune    4.003e+11
Pluto      4.191e+11