Obs. : 2019-01-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.532e+11
Venus      3.459e+11
Earth      3.597e+11
Mars       3.539e+11
Jupiter    3.459e+11
Saturn     3.491e+11
Uranus     3.536e+11
Neptune    3.581e+11
Pluto      3.532e+11