Obs. : 2023-05-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.701e+08
Venus      8.968e+08
Earth      8.764e+08
Mars       8.968e+08
Jupiter    8.658e+08
Saturn     8.454e+08
Uranus     8.701e+08
Neptune    8.460e+08
Pluto      8.643e+08