Obs. : 2026-05-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.971e+08
Venus      7.525e+08
Earth      7.383e+08
Mars       8.100e+08
Jupiter    7.357e+08
Saturn     8.269e+08
Uranus     7.569e+08
Neptune    8.269e+08
Pluto      8.015e+08