Obs. : 2013-12-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.043e+11
Venus      3.886e+11
Earth      3.853e+11
Mars       4.132e+11
Jupiter    3.851e+11
Saturn     4.319e+11
Uranus     3.644e+11
Neptune    3.683e+11
Pluto      4.043e+11