Obs. : 2010-05-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.845e+11
Venus      3.850e+11
Earth      3.897e+11
Mars       3.795e+11
Jupiter    3.797e+11
Saturn     3.838e+11
Uranus     3.797e+11
Neptune    3.772e+11
Pluto      3.826e+11