Obs. : 2018-07-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.778e+11
Venus      3.805e+11
Earth      3.659e+11
Mars       3.589e+11
Jupiter    3.782e+11
Saturn     3.635e+11
Uranus     3.586e+11
Neptune    3.516e+11
Pluto      3.619e+11