Obs. : 2010-01-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.691e+11
Venus      3.865e+11
Earth      3.640e+11
Mars       3.640e+11
Jupiter    3.865e+11
Saturn     3.615e+11
Uranus     3.785e+11
Neptune    3.865e+11
Pluto      3.630e+11