Obs. : 2023-02-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.836e+08
Venus      9.204e+08
Earth      9.649e+08
Mars       9.550e+08
Jupiter    9.309e+08
Saturn     9.052e+08
Uranus     9.329e+08
Neptune    9.204e+08
Pluto      8.836e+08