Obs. : 2009-11-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.528e+11
Venus      3.517e+11
Earth      3.612e+11
Mars       3.619e+11
Jupiter    3.505e+11
Saturn     3.556e+11
Uranus     3.474e+11
Neptune    3.505e+11
Pluto      3.548e+11