Obs. : 2023-10-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.903e+08
Venus      8.532e+08
Earth      8.561e+08
Mars       8.903e+08
Jupiter    8.455e+08
Saturn     9.006e+08
Uranus     8.471e+08
Neptune    8.649e+08
Pluto      9.148e+08