Obs. : 2020-02-02
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.893e+08
Venus      5.847e+08
Earth      6.067e+08
Mars       6.092e+08
Jupiter    6.092e+08
Saturn     6.092e+08
Uranus     5.899e+08
Neptune    5.847e+08
Pluto      6.092e+08