Obs. : 2010-12-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.875e+11
Venus      3.721e+11
Earth      3.849e+11
Mars       3.853e+11
Jupiter    3.831e+11
Saturn     3.681e+11
Uranus     3.831e+11
Neptune    3.847e+11
Pluto      3.875e+11