minimoon

noun3

1. •
   A brief honeymoon or holiday taken after a wedding.

   • The couple are yet to go on their honeymoon because of their strict working schedules but did find time for a ‘minimoon’ after tying the knot. — 2012
2. •
   A small asteroid captured by the Earth's gravity and temporarily acting as a second moon of Earth.

   • This photo of Earth's newest minimoon was taken by the 8-meter Gemini North telescope on Hawaii's Maunakea. — 2020
3. •
   Synonym of micromoon (“a full moon which appears unusually small due to coinciding with the Moon's apogee”).

   • The trouble is, the difference in size between Supermoon and Minimoon, though apparent when placed side-by-side, is only 14 percent, too small to be seen with the naked eye. — 2014