Obs. : 2018-11-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.533e+11
Venus      3.491e+11
Earth      3.520e+11
Mars       3.535e+11
Jupiter    3.533e+11
Saturn     3.542e+11
Uranus     3.508e+11
Neptune    3.535e+11
Pluto      3.548e+11