Obs. : 2018-04-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.790e+11
Venus      3.780e+11
Earth      3.734e+11
Mars       3.744e+11
Jupiter    3.734e+11
Saturn     3.747e+11
Uranus     3.805e+11
Neptune    3.780e+11
Pluto      3.744e+11