Obs. : 2015-08-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.975e+11
Venus      3.975e+11
Earth      4.455e+11
Mars       4.110e+11
Jupiter    3.975e+11
Saturn     4.408e+11
Uranus     4.497e+11
Neptune    4.469e+11
Pluto      4.445e+11