Obs. : 2016-08-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.745e+11
Venus      3.745e+11
Earth      3.896e+11
Mars       4.000e+11
Jupiter    3.820e+11
Saturn     4.000e+11
Uranus     3.759e+11
Neptune    3.829e+11
Pluto      3.922e+11