Obs. : 2022-06-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.114e+08
Venus      8.231e+08
Earth      7.411e+08
Mars       8.236e+08
Jupiter    8.045e+08
Saturn     7.650e+08
Uranus     8.313e+08
Neptune    7.862e+08
Pluto      7.543e+08