Obs. : 2017-06-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.616e+11
Venus      3.653e+11
Earth      3.672e+11
Mars       3.634e+11
Jupiter    3.733e+11
Saturn     3.618e+11
Uranus     3.653e+11
Neptune    3.568e+11
Pluto      3.602e+11