Obs. : 2019-01-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.537e+11
Venus      3.427e+11
Earth      3.568e+11
Mars       3.563e+11
Jupiter    3.427e+11
Saturn     3.486e+11
Uranus     3.553e+11
Neptune    3.591e+11
Pluto      3.537e+11