Sky Events December 2025 December 3: Close approach of Moon & M45 (Pleiades), with angular separation of 48.4′ December 4: Full Moon, Moon at perigee; highest altitude of Mercury in morning sky, Mercury at dichotomy (half phase). December 6: φ-Cassiopeid meteor shower peaks December 7: Puppid-Velid meteor shower peaks; Conjunction of Moon and Jupiter with