Obs. : 2011-03-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.283e+11
Venus      4.389e+11
Earth      3.849e+11
Mars       4.503e+11
Jupiter    4.283e+11
Saturn     3.884e+11
Uranus     4.399e+11
Neptune    4.457e+11
Pluto      4.096e+11