Obs. : 2011-06-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.290e+11
Venus      4.329e+11
Earth      4.234e+11
Mars       4.329e+11
Jupiter    4.295e+11
Saturn     4.409e+11
Uranus     4.149e+11
Neptune    4.089e+11
Pluto      4.288e+11