Obs. : 2011-05-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.339e+11
Venus      4.339e+11
Earth      3.994e+11
Mars       4.339e+11
Jupiter    4.349e+11
Saturn     4.288e+11
Uranus     4.311e+11
Neptune    4.098e+11
Pluto      3.969e+11