Obs. : 2019-03-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.710e+11
Venus      3.650e+11
Earth      3.490e+11
Mars       3.400e+11
Jupiter    3.545e+11
Saturn     3.564e+11
Uranus     3.628e+11
Neptune    3.710e+11
Pluto      3.564e+11