Obs. : 2019-08-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.451e+11
Venus      3.390e+11
Earth      3.516e+11
Mars       3.390e+11
Jupiter    3.427e+11
Saturn     3.441e+11
Uranus     3.593e+11
Neptune    3.516e+11
Pluto      3.509e+11