Obs. : 2010-03-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.905e+11
Venus      3.866e+11
Earth      3.739e+11
Mars       3.754e+11
Jupiter    3.849e+11
Saturn     3.712e+11
Uranus     3.903e+11
Neptune    3.737e+11
Pluto      3.647e+11