Obs. : 2018-10-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.457e+11
Venus      4.487e+11
Earth      4.550e+11
Mars       4.498e+11
Jupiter    4.494e+11
Saturn     4.535e+11
Uranus     4.550e+11
Neptune    4.521e+11
Pluto      4.529e+11