Obs. : 2010-12-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.729e+11
Venus      3.625e+11
Earth      3.815e+11
Mars       3.729e+11
Jupiter    3.794e+11
Saturn     3.678e+11
Uranus     3.794e+11
Neptune    3.816e+11
Pluto      3.729e+11