An exomoon or extrasolar moon is a natural satellite that orbits an exoplanet or other non-stellar extrasolar body. Exomoons are difficult to detect and...

have been no positive confirmations of satellites of extra-solar planets (exomoons); however, some evidence in favour of their existence has been produced...

yet be ruled out; deep exploration would be required for confirmation. Exomoons are not yet confirmed to exist and their detection may be limited to transit-timing...

Tidally detached exomoons, also known as orphaned exomoons or ploonets, are hypothetical exoplanets that were formerly exomoons of another planet, before...

and orbits its star every 287.4 days. In 2017, hints of a Neptune-sized exomoon in orbit of the planet was found using photometric observations collected...

method was performed by the Kepler space telescope. In 2020, a possible exomoon was discovered from transit timing variations. Follow-up observations deemed...

Kepler-1625b I, a possible moon of exoplanet Kepler-1625b, may be the first exomoon ever discovered (pending confirmation), and was first indicated after preliminary...

identified as a candidate planet until 2019. In 2021, a candidate Neptune-sized exomoon in orbit around Kepler-1708b was found by astronomer David Kipping and...

a somewhat smaller scale, a planetary-mass object, planetesimal, moon, exomoon or asteroid that has been disrupted or destroyed by a nearby or passing...

The Hunt for Exomoons with Kepler (HEK) is a project whose aim is to search for exomoons, natural satellites of exoplanets, using data collected by the...