Obs. : 2016-05-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.154e+11
Venus      4.140e+11
Earth      4.055e+11
Mars       4.055e+11
Jupiter    4.049e+11
Saturn     4.055e+11
Uranus     4.109e+11
Neptune    4.023e+11
Pluto      4.073e+11