Obs. : 2010-01-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.561e+11
Venus      3.586e+11
Earth      3.589e+11
Mars       3.589e+11
Jupiter    3.589e+11
Saturn     3.598e+11
Uranus     3.587e+11
Neptune    3.592e+11
Pluto      3.561e+11