Obs. : 2023-05-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.789e+08
Venus      8.624e+08
Earth      8.603e+08
Mars       8.543e+08
Jupiter    8.789e+08
Saturn     8.850e+08
Uranus     8.666e+08
Neptune    8.985e+08
Pluto      8.675e+08