Obs. : 2009-01-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.536e+11
Venus      3.525e+11
Earth      3.491e+11
Mars       3.480e+11
Jupiter    3.536e+11
Saturn     3.438e+11
Uranus     3.525e+11
Neptune    3.555e+11
Pluto      3.439e+11