Obs. : 2010-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.808e+11
Venus      3.853e+11
Earth      3.880e+11
Mars       3.808e+11
Jupiter    3.754e+11
Saturn     3.833e+11
Uranus     3.754e+11
Neptune    3.747e+11
Pluto      3.797e+11