Obs. : 2013-08-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.912e+11
Venus      3.922e+11
Earth      4.220e+11
Mars       4.018e+11
Jupiter    4.060e+11
Saturn     4.042e+11
Uranus     4.294e+11
Neptune    4.261e+11
Pluto      4.132e+11