Obs. : 2018-08-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.458e+11
Venus      3.450e+11
Earth      3.481e+11
Mars       3.450e+11
Jupiter    3.460e+11
Saturn     3.455e+11
Uranus     3.535e+11
Neptune    3.466e+11
Pluto      3.444e+11