Obs. : 2012-12-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.966e+11
Venus      3.966e+11
Earth      4.036e+11
Mars       4.229e+11
Jupiter    4.195e+11
Saturn     3.893e+11
Uranus     4.412e+11
Neptune    4.391e+11
Pluto      4.229e+11