Obs. : 2008-12-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.496e+11
Venus      3.515e+11
Earth      3.459e+11
Mars       3.454e+11
Jupiter    3.515e+11
Saturn     3.416e+11
Uranus     3.453e+11
Neptune    3.476e+11
Pluto      3.496e+11