Obs. : 2018-05-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.720e+11
Venus      3.731e+11
Earth      3.711e+11
Mars       3.663e+11
Jupiter    3.716e+11
Saturn     3.675e+11
Uranus     3.674e+11
Neptune    3.636e+11
Pluto      3.663e+11