Obs. : 2020-12-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.935e+08
Venus      6.932e+08
Earth      7.209e+08
Mars       7.113e+08
Jupiter    6.983e+08
Saturn     7.005e+08
Uranus     7.136e+08
Neptune    7.044e+08
Pluto      6.983e+08