Obs. : 2013-01-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.394e+11
Venus      4.278e+11
Earth      4.153e+11
Mars       4.432e+11
Jupiter    4.154e+11
Saturn     3.925e+11
Uranus     4.358e+11
Neptune    4.432e+11
Pluto      4.221e+11