Obs. : 2016-12-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.745e+11
Venus      3.723e+11
Earth      3.730e+11
Mars       3.723e+11
Jupiter    3.787e+11
Saturn     3.743e+11
Uranus     3.712e+11
Neptune    3.723e+11
Pluto      3.741e+11