Obs. : 2009-04-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.636e+11
Venus      3.522e+11
Earth      3.466e+11
Mars       3.522e+11
Jupiter    3.412e+11
Saturn     3.539e+11
Uranus     3.493e+11
Neptune    3.441e+11
Pluto      3.412e+11