Obs. : 2018-06-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.843e+11
Venus      3.847e+11
Earth      3.878e+11
Mars       3.864e+11
Jupiter    3.911e+11
Saturn     3.863e+11
Uranus     3.825e+11
Neptune    3.849e+11
Pluto      3.866e+11