Obs. : 2011-03-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.972e+11
Venus      3.807e+11
Earth      4.198e+11
Mars       3.874e+11
Jupiter    4.051e+11
Saturn     4.128e+11
Uranus     3.972e+11
Neptune    3.806e+11
Pluto      3.855e+11