Obs. : 2016-12-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.554e+11
Venus      3.613e+11
Earth      3.567e+11
Mars       3.614e+11
Jupiter    3.425e+11
Saturn     3.480e+11
Uranus     3.564e+11
Neptune    3.614e+11
Pluto      3.554e+11