Obs. : 2015-01-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.243e+11
Venus      4.243e+11
Earth      4.440e+11
Mars       4.338e+11
Jupiter    4.389e+11
Saturn     4.125e+11
Uranus     4.553e+11
Neptune    4.414e+11
Pluto      4.108e+11