Obs. : 2012-10-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.389e+11
Venus      4.253e+11
Earth      4.763e+11
Mars       4.350e+11
Jupiter    4.787e+11
Saturn     4.357e+11
Uranus     4.710e+11
Neptune    4.530e+11
Pluto      4.435e+11