Obs. : 2013-08-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.608e+11
Venus      3.805e+11
Earth      3.724e+11
Mars       3.608e+11
Jupiter    3.626e+11
Saturn     3.823e+11
Uranus     3.606e+11
Neptune    3.664e+11
Pluto      3.729e+11