Obs. : 2011-01-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.634e+11
Venus      3.626e+11
Earth      3.732e+11
Mars       3.688e+11
Jupiter    3.702e+11
Saturn     3.723e+11
Uranus     3.702e+11
Neptune    3.714e+11
Pluto      3.665e+11