Obs. : 2026-06-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.773e+08
Venus      7.735e+08
Earth      7.734e+08
Mars       7.881e+08
Jupiter    7.735e+08
Saturn     8.156e+08
Uranus     7.823e+08
Neptune    8.174e+08
Pluto      7.809e+08