Pathfinder event for the occultation of alpha Orionis on 2023 December 12!
The determination of the size and shape of the asteroid is highly desired. An accurate astrometric position obtained with measurements during this occultation can improve the prediction for the important occultation on December 12.
Very faint star!
Last update: 2023 Sep 30,
Occult Watcher Cloud (based on JPL #70 with astrometry from occultations on Sep 13 & 16):
Prediction by the ERC Lucky Star project (2023 Oct 17):
Links to the observation campaigns for the Dec 12 event are on the special webpage of IOTA/ES: