Obs. : 2018-06-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.631e+11
Venus      3.619e+11
Earth      3.594e+11
Mars       3.539e+11
Jupiter    3.628e+11
Saturn     3.575e+11
Uranus     3.623e+11
Neptune    3.529e+11
Pluto      3.563e+11