Obs. : 2024-02-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.614e+08
Venus      8.730e+08
Earth      9.140e+08
Mars       8.730e+08
Jupiter    8.553e+08
Saturn     8.426e+08
Uranus     8.553e+08
Neptune    8.465e+08
Pluto      8.730e+08