Obs. : 2023-06-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.313e+08
Venus      9.143e+08
Earth      8.483e+08
Mars       9.113e+08
Jupiter    8.648e+08
Saturn     8.724e+08
Uranus     8.648e+08
Neptune    8.847e+08
Pluto      8.619e+08