Obs. : 2010-01-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.626e+11
Venus      3.626e+11
Earth      3.544e+11
Mars       3.525e+11
Jupiter    3.833e+11
Saturn     3.463e+11
Uranus     3.782e+11
Neptune    3.833e+11
Pluto      3.626e+11