Obs. : 2025-01-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.135e+08
Venus      8.597e+08
Earth      8.200e+08
Mars       8.099e+08
Jupiter    8.284e+08
Saturn     8.597e+08
Uranus     8.415e+08
Neptune    8.593e+08
Pluto      8.940e+08