Obs. : 2023-07-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.200e+08
Venus      9.214e+08
Earth      9.074e+08
Mars       9.214e+08
Jupiter    8.752e+08
Saturn     9.142e+08
Uranus     8.557e+08
Neptune    9.108e+08
Pluto      9.267e+08