Obs. : 2025-03-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.886e+08
Venus      8.886e+08
Earth      8.546e+08
Mars       8.288e+08
Jupiter    8.281e+08
Saturn     8.886e+08
Uranus     8.310e+08
Neptune    8.886e+08
Pluto      8.735e+08