Obs. : 2015-02-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.243e+11
Venus      5.083e+11
Earth      5.301e+11
Mars       5.009e+11
Jupiter    5.319e+11
Saturn     5.366e+11
Uranus     4.981e+11
Neptune    5.122e+11
Pluto      5.319e+11