Obs. : 2010-11-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.816e+11
Venus      3.860e+11
Earth      3.880e+11
Mars       3.816e+11
Jupiter    3.775e+11
Saturn     3.860e+11
Uranus     3.775e+11
Neptune    3.747e+11
Pluto      3.802e+11