Obs. : 2011-02-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.042e+11
Venus      3.723e+11
Earth      3.733e+11
Mars       3.950e+11
Jupiter    4.057e+11
Saturn     3.525e+11
Uranus     4.057e+11
Neptune    3.950e+11
Pluto      3.585e+11