Obs. : 2019-01-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.492e+11
Venus      3.390e+11
Earth      3.530e+11
Mars       3.575e+11
Jupiter    3.390e+11
Saturn     3.453e+11
Uranus     3.543e+11
Neptune    3.558e+11
Pluto      3.492e+11