Obs. : 2017-06-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.669e+11
Venus      3.696e+11
Earth      3.730e+11
Mars       3.637e+11
Jupiter    3.807e+11
Saturn     3.685e+11
Uranus     3.696e+11
Neptune    3.616e+11
Pluto      3.675e+11