Obs. : 2013-12-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.393e+11
Venus      4.374e+11
Earth      3.893e+11
Mars       3.987e+11
Jupiter    3.909e+11
Saturn     4.202e+11
Uranus     3.931e+11
Neptune    4.179e+11
Pluto      4.416e+11