Obs. : 2023-04-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.833e+08
Venus      8.853e+08
Earth      9.145e+08
Mars       8.903e+08
Jupiter    8.867e+08
Saturn     8.961e+08
Uranus     8.853e+08
Neptune    8.959e+08
Pluto      8.857e+08