Obs. : 2018-07-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.481e+11
Venus      3.492e+11
Earth      3.574e+11
Mars       3.545e+11
Jupiter    3.653e+11
Saturn     3.574e+11
Uranus     3.459e+11
Neptune    3.512e+11
Pluto      3.563e+11