Obs. : 2016-12-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.455e+11
Venus      3.434e+11
Earth      3.308e+11
Mars       3.403e+11
Jupiter    3.273e+11
Saturn     3.382e+11
Uranus     3.331e+11
Neptune    3.375e+11
Pluto      3.455e+11