Obs. : 2010-03-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.924e+11
Venus      3.868e+11
Earth      3.744e+11
Mars       3.753e+11
Jupiter    3.865e+11
Saturn     3.706e+11
Uranus     3.919e+11
Neptune    3.778e+11
Pluto      3.675e+11