Obs. : 2020-09-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.194e+08
Venus      6.582e+08
Earth      6.445e+08
Mars       6.445e+08
Jupiter    6.309e+08
Saturn     6.309e+08
Uranus     6.501e+08
Neptune    6.342e+08
Pluto      6.309e+08