Obs. : 2023-02-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.121e+08
Venus      8.515e+08
Earth      8.737e+08
Mars       8.244e+08
Jupiter    8.515e+08
Saturn     9.121e+08
Uranus     8.301e+08
Neptune    8.713e+08
Pluto      9.164e+08