Obs. : 2026-10-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.463e+08
Venus      7.494e+08
Earth      6.863e+08
Mars       7.622e+08
Jupiter    7.695e+08
Saturn     6.863e+08
Uranus     7.163e+08
Neptune    6.863e+08
Pluto      7.117e+08