Obs. : 2013-03-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.715e+11
Venus      4.632e+11
Earth      4.148e+11
Mars       4.470e+11
Jupiter    4.221e+11
Saturn     4.272e+11
Uranus     4.470e+11
Neptune    4.715e+11
Pluto      4.709e+11