Obs. : 2017-02-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.484e+11
Venus      3.403e+11
Earth      3.816e+11
Mars       3.403e+11
Jupiter    3.601e+11
Saturn     3.504e+11
Uranus     3.417e+11
Neptune    3.456e+11
Pluto      3.504e+11