Obs. : 2020-11-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.838e+08
Venus      6.798e+08
Earth      7.327e+08
Mars       7.329e+08
Jupiter    7.104e+08
Saturn     7.104e+08
Uranus     7.334e+08
Neptune    7.301e+08
Pluto      7.054e+08