In November 2011, a rotational lightcurve of Appenzella was obtained by French astronomer René Roy at his Blauvac Observatory (627) in southeastern France. Lightcurve analysis gave a well-defined a rotation period of hours with a brightness variation of 0.53 magnitude (). In 2016, remodeled photometric data from the Lowell database gave in a very similar period of 5.18335 hours.
