Obs. : 2024-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.695e+08
Venus      8.637e+08
Earth      8.592e+08
Mars       8.637e+08
Jupiter    9.015e+08
Saturn     8.743e+08
Uranus     9.051e+08
Neptune    8.842e+08
Pluto      8.637e+08