Obs. : 2022-06-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.674e+08
Venus      7.818e+08
Earth      8.788e+08
Mars       8.081e+08
Jupiter    8.255e+08
Saturn     8.639e+08
Uranus     7.818e+08
Neptune    8.362e+08
Pluto      8.769e+08