Obs. : 2011-03-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.509e+11
Venus      3.880e+11
Earth      3.826e+11
Mars       4.292e+11
Jupiter    4.504e+11
Saturn     3.711e+11
Uranus     4.292e+11
Neptune    3.880e+11
Pluto      3.617e+11