Obs. : 2010-02-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.864e+11
Venus      3.921e+11
Earth      3.640e+11
Mars       3.648e+11
Jupiter    3.864e+11
Saturn     3.604e+11
Uranus     3.878e+11
Neptune    3.864e+11
Pluto      3.600e+11