Obs. : 2011-09-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.388e+11
Venus      4.359e+11
Earth      4.267e+11
Mars       4.403e+11
Jupiter    4.335e+11
Saturn     4.337e+11
Uranus     4.291e+11
Neptune    4.265e+11
Pluto      4.312e+11