Obs. : 2022-04-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.800e+08
Venus      7.527e+08
Earth      7.967e+08
Mars       7.474e+08
Jupiter    7.527e+08
Saturn     7.383e+08
Uranus     7.765e+08
Neptune    7.527e+08
Pluto      7.352e+08