Obs. : 2009-12-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.619e+11
Venus      3.513e+11
Earth      3.672e+11
Mars       3.645e+11
Jupiter    3.626e+11
Saturn     3.536e+11
Uranus     3.617e+11
Neptune    3.626e+11
Pluto      3.596e+11