Obs. : 2023-06-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.639e+08
Venus      8.465e+08
Earth      9.135e+08
Mars       8.465e+08
Jupiter    8.780e+08
Saturn     8.542e+08
Uranus     8.639e+08
Neptune    8.613e+08
Pluto      8.577e+08