Obs. : 2014-10-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.038e+11
Venus      4.038e+11
Earth      4.250e+11
Mars       3.830e+11
Jupiter    4.176e+11
Saturn     3.917e+11
Uranus     4.073e+11
Neptune    3.975e+11
Pluto      3.825e+11