Obs. : 2010-02-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.675e+11
Venus      3.839e+11
Earth      3.606e+11
Mars       3.606e+11
Jupiter    3.863e+11
Saturn     3.582e+11
Uranus     3.871e+11
Neptune    3.839e+11
Pluto      3.582e+11