Obs. : 2020-09-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.032e+08
Venus      6.351e+08
Earth      6.338e+08
Mars       6.391e+08
Jupiter    6.169e+08
Saturn     6.169e+08
Uranus     6.391e+08
Neptune    6.323e+08
Pluto      6.169e+08