Obs. : 2008-12-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.474e+11
Venus      3.479e+11
Earth      3.459e+11
Mars       3.439e+11
Jupiter    3.474e+11
Saturn     3.399e+11
Uranus     3.446e+11
Neptune    3.477e+11
Pluto      3.439e+11