Obs. : 2023-12-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.987e+08
Venus      9.046e+08
Earth      9.142e+08
Mars       8.987e+08
Jupiter    9.939e+08
Saturn     9.283e+08
Uranus     9.939e+08
Neptune    9.740e+08
Pluto      9.110e+08