Obs. : 2023-01-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.733e+08
Venus      8.736e+08
Earth      9.093e+08
Mars       9.089e+08
Jupiter    8.536e+08
Saturn     8.686e+08
Uranus     8.937e+08
Neptune    8.512e+08
Pluto      8.733e+08