Obs. : 2025-03-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.802e+08
Venus      9.027e+08
Earth      8.887e+08
Mars       8.977e+08
Jupiter    8.882e+08
Saturn     9.027e+08
Uranus     8.803e+08
Neptune    9.027e+08
Pluto      9.795e+08