Obs. : 2019-12-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.969e+08
Venus      6.096e+08
Earth      5.950e+08
Mars       5.882e+08
Jupiter    5.969e+08
Saturn     6.106e+08
Uranus     5.936e+08
Neptune    6.057e+08
Pluto      6.106e+08