Obs. : 2017-01-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.360e+11
Venus      3.566e+11
Earth      3.588e+11
Mars       3.566e+11
Jupiter    3.424e+11
Saturn     3.355e+11
Uranus     3.574e+11
Neptune    3.532e+11
Pluto      3.389e+11