Predictions of stellar occultations by TNOs, Centaurs and Trojans



This page presents the prediction of occultations by selected TNOs, Centaurs and Trojans of forthcoming months. These predictions are made in the framework of Lucky Star project (led by B. Sicardy) and in collaboration with groups from Paris, Meudon, Granada and Rio.

For specific campaigns, you can have a look to campaigns page.

Information about the predictions can be found in Assafin et al. (2010) for Pluto system predictions, Assafin et al. (2012) for the TNO predictions, Camargo et al. (2014) for TNO and Centaur predictions. Ephemerides of the selected objects come from Desmars et al. (2015) and they are regularly updated (see 'Ephemerides' section) thanks to observations from Minor Planet Center and our own observations made at ESO, Pic du Midi, Calar Alto, Sierra Nevada and Observatorio do Pico dos Dias, and also from astrometric positions coming from the Dark Energy Survey (Banda-Huarca et al., 2019). Ephemerides of TNO satellites come from the Genoid project (Vachier et al., 2012). Predictions make use of Gaia Data releases, currently Gaia eDR3 (Gaia Collaboration, 2020) for the position of the stars and the proper motions.

A special page for the occultation by Neptune, rings and two satellites on 7 October 2021 is available on that link.

You can choose to display the events only visible for a specific place or a specific observatory:


Map with IAU observatories can be found on this page.
° (East positive) ° (North positive)

IMPORTANT: If you observe one of these predicted events, please report and upload your data on Occult Portal. Due to the success of the project and the large number of observed events, we have developed the portal in order to help in the analysis and to guarantee your participation in later publications.

For general comments or questions about this page, please write to J.Desmars.

(East-Asia, Europe & North Africa, Oceania, Southern Africa, North America, South America)

Information about the table:

Information about the maps: