Obs. : 2017-03-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.667e+11
Venus      3.625e+11
Earth      3.498e+11
Mars       3.593e+11
Jupiter    3.529e+11
Saturn     3.564e+11
Uranus     3.593e+11
Neptune    3.666e+11
Pluto      3.603e+11