Obs. : 2009-07-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.397e+11
Venus      3.442e+11
Earth      3.459e+11
Mars       3.465e+11
Jupiter    3.452e+11
Saturn     3.536e+11
Uranus     3.428e+11
Neptune    3.452e+11
Pluto      3.474e+11