Obs. : 2015-12-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.283e+11
Venus      4.418e+11
Earth      4.410e+11
Mars       4.474e+11
Jupiter    4.465e+11
Saturn     4.363e+11
Uranus     4.402e+11
Neptune    4.368e+11
Pluto      4.283e+11