Obs. : 2009-03-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.479e+11
Venus      3.487e+11
Earth      3.454e+11
Mars       3.479e+11
Jupiter    3.398e+11
Saturn     3.440e+11
Uranus     3.535e+11
Neptune    3.479e+11
Pluto      3.348e+11