Obs. : 2014-07-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.255e+11
Venus      4.255e+11
Earth      3.383e+11
Mars       4.066e+11
Jupiter    4.549e+11
Saturn     3.745e+11
Uranus     3.745e+11
Neptune    3.419e+11
Pluto      3.383e+11