Obs. : 2013-05-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.567e+11
Venus      4.567e+11
Earth      4.403e+11
Mars       5.110e+11
Jupiter    4.519e+11
Saturn     4.377e+11
Uranus     4.959e+11
Neptune    4.686e+11
Pluto      4.419e+11