Obs. : 2019-08-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.480e+11
Venus      3.491e+11
Earth      3.514e+11
Mars       3.550e+11
Jupiter    3.472e+11
Saturn     3.504e+11
Uranus     3.695e+11
Neptune    3.553e+11
Pluto      3.489e+11