Obs. : 2008-12-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.439e+11
Venus      3.476e+11
Earth      3.480e+11
Mars       3.439e+11
Jupiter    3.476e+11
Saturn     3.419e+11
Uranus     3.457e+11
Neptune    3.456e+11
Pluto      3.439e+11