Obs. : 2026-05-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.737e+08
Venus      7.686e+08
Earth      6.855e+08
Mars       7.562e+08
Jupiter    7.682e+08
Saturn     7.405e+08
Uranus     7.737e+08
Neptune    7.257e+08
Pluto      6.822e+08