Obs. : 2012-01-31
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.272e+11
Venus      4.224e+11
Earth      4.291e+11
Mars       4.326e+11
Jupiter    4.153e+11
Saturn     4.215e+11
Uranus     4.171e+11
Neptune    4.316e+11
Pluto      4.222e+11