Obs. : 2010-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.749e+11
Venus      3.741e+11
Earth      3.733e+11
Mars       3.880e+11
Jupiter    3.717e+11
Saturn     3.880e+11
Uranus     3.717e+11
Neptune    3.705e+11
Pluto      3.792e+11