Obs. : 2024-04-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.745e+08
Venus      8.292e+08
Earth      8.459e+08
Mars       7.953e+08
Jupiter    8.685e+08
Saturn     7.953e+08
Uranus     8.642e+08
Neptune    8.292e+08
Pluto      7.612e+08