Obs. : 2025-06-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.941e+08
Venus      7.744e+08
Earth      7.822e+08
Mars       7.972e+08
Jupiter    7.941e+08
Saturn     7.762e+08
Uranus     7.905e+08
Neptune    7.762e+08
Pluto      7.882e+08