Obs. : 2019-08-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.525e+11
Venus      3.517e+11
Earth      3.473e+11
Mars       3.529e+11
Jupiter    3.470e+11
Saturn     3.501e+11
Uranus     3.640e+11
Neptune    3.462e+11
Pluto      3.481e+11