Obs. : 2018-08-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.602e+11
Venus      3.616e+11
Earth      3.587e+11
Mars       3.561e+11
Jupiter    3.613e+11
Saturn     3.583e+11
Uranus     3.759e+11
Neptune    3.610e+11
Pluto      3.553e+11