Obs. : 2016-07-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.054e+11
Venus      4.054e+11
Earth      3.776e+11
Mars       3.926e+11
Jupiter    4.061e+11
Saturn     3.880e+11
Uranus     3.704e+11
Neptune    3.660e+11
Pluto      3.776e+11