Obs. : 2017-03-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.784e+11
Venus      3.763e+11
Earth      3.635e+11
Mars       3.712e+11
Jupiter    3.696e+11
Saturn     3.772e+11
Uranus     3.712e+11
Neptune    3.839e+11
Pluto      3.755e+11