Obs. : 2018-08-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.494e+11
Venus      3.481e+11
Earth      3.480e+11
Mars       3.505e+11
Jupiter    3.497e+11
Saturn     3.500e+11
Uranus     3.520e+11
Neptune    3.482e+11
Pluto      3.505e+11