Obs. : 2009-06-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.517e+11
Venus      3.513e+11
Earth      3.512e+11
Mars       3.446e+11
Jupiter    3.451e+11
Saturn     3.739e+11
Uranus     3.434e+11
Neptune    3.451e+11
Pluto      3.587e+11