Obs. : 2012-11-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.621e+11
Venus      4.150e+11
Earth      4.148e+11
Mars       4.662e+11
Jupiter    4.148e+11
Saturn     4.368e+11
Uranus     4.371e+11
Neptune    4.572e+11
Pluto      4.675e+11