Obs. : 2018-05-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.147e+11
Venus      3.131e+11
Earth      3.098e+11
Mars       3.087e+11
Jupiter    3.098e+11
Saturn     3.096e+11
Uranus     3.125e+11
Neptune    3.092e+11
Pluto      3.087e+11