Obs. : 2010-09-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.657e+11
Venus      3.786e+11
Earth      3.784e+11
Mars       3.786e+11
Jupiter    3.723e+11
Saturn     3.747e+11
Uranus     3.723e+11
Neptune    3.784e+11
Pluto      3.864e+11