Obs. : 2011-03-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.464e+11
Venus      4.198e+11
Earth      3.729e+11
Mars       4.507e+11
Jupiter    4.529e+11
Saturn     3.687e+11
Uranus     4.529e+11
Neptune    4.198e+11
Pluto      3.821e+11