Obs. : 2015-09-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.261e+11
Venus      4.353e+11
Earth      4.481e+11
Mars       4.353e+11
Jupiter    4.312e+11
Saturn     4.399e+11
Uranus     4.481e+11
Neptune    4.628e+11
Pluto      4.558e+11