Obs. : 2016-10-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.929e+11
Venus      3.776e+11
Earth      4.017e+11
Mars       3.791e+11
Jupiter    3.910e+11
Saturn     3.762e+11
Uranus     4.001e+11
Neptune    3.877e+11
Pluto      3.820e+11