Obs. : 2016-01-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.639e+11
Venus      3.574e+11
Earth      3.618e+11
Mars       3.562e+11
Jupiter    3.591e+11
Saturn     3.571e+11
Uranus     3.792e+11
Neptune    3.853e+11
Pluto      3.639e+11