Even from Alpha Centauri A or B , Proxima would only be seen as a 5th magnitude star . Because of Proxima Centauri 's southern declination , it can only be viewed south of latitude 27 Â N. Red dwarfs such as Proxima Centauri are far too faint to be seen with the naked eye ; even from Alpha Centauri A or B , Proxima would only be seen as a fifth magnitude star .