Obs. : 2014-02-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.917e+11
Venus      4.670e+11
Earth      4.277e+11
Mars       4.179e+11
Jupiter    4.244e+11
Saturn     4.237e+11
Uranus     4.656e+11
Neptune    4.910e+11
Pluto      4.469e+11