Obs. : 2023-06-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.704e+08
Venus      9.013e+08
Earth      8.893e+08
Mars       9.013e+08
Jupiter    8.787e+08
Saturn     8.778e+08
Uranus     8.704e+08
Neptune    8.864e+08
Pluto      8.727e+08