Obs. : 2013-10-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.883e+11
Venus      3.952e+11
Earth      4.071e+11
Mars       4.132e+11
Jupiter    4.123e+11
Saturn     3.883e+11
Uranus     4.159e+11
Neptune    4.184e+11
Pluto      4.003e+11