Obs. : 2018-03-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.544e+11
Venus      3.503e+11
Earth      3.426e+11
Mars       3.487e+11
Jupiter    3.452e+11
Saturn     3.502e+11
Uranus     3.503e+11
Neptune    3.583e+11
Pluto      3.502e+11