Obs. : 2020-02-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.223e+08
Venus      5.916e+08
Earth      6.096e+08
Mars       6.127e+08
Jupiter    6.142e+08
Saturn     6.155e+08
Uranus     5.916e+08
Neptune    6.186e+08
Pluto      6.142e+08