Obs. : 2019-07-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.336e+11
Venus      3.336e+11
Earth      3.525e+11
Mars       3.362e+11
Jupiter    3.581e+11
Saturn     3.538e+11
Uranus     3.357e+11
Neptune    3.380e+11
Pluto      3.525e+11