Obs. : 2018-12-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.507e+11
Venus      3.481e+11
Earth      3.549e+11
Mars       3.585e+11
Jupiter    3.544e+11
Saturn     3.605e+11
Uranus     3.523e+11
Neptune    3.585e+11
Pluto      3.605e+11