Obs. : 2024-02-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.651e+08
Venus      8.724e+08
Earth      8.350e+08
Mars       8.724e+08
Jupiter    7.991e+08
Saturn     8.684e+08
Uranus     7.991e+08
Neptune    8.380e+08
Pluto      8.727e+08