Obs. : 2010-05-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.846e+11
Venus      3.845e+11
Earth      3.794e+11
Mars       3.766e+11
Jupiter    3.835e+11
Saturn     3.742e+11
Uranus     3.835e+11
Neptune    3.798e+11
Pluto      3.801e+11