Obs. : 2012-01-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.408e+11
Venus      4.537e+11
Earth      4.369e+11
Mars       4.373e+11
Jupiter    4.394e+11
Saturn     4.343e+11
Uranus     4.451e+11
Neptune    4.501e+11
Pluto      4.364e+11