Obs. : 2010-03-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.708e+11
Venus      3.752e+11
Earth      3.742e+11
Mars       3.785e+11
Jupiter    3.708e+11
Saturn     3.694e+11
Uranus     3.752e+11
Neptune    3.627e+11
Pluto      3.444e+11