December 2025 offers unmissable celestial shows: the Geminids and Ursids illuminate the nights with multicolored trails, the Cold Supermoon of December 5 shines in the sky, the interstellar comet 3I/ATLAS crosses the Solar System and the Moon aligns with Jupiter, Saturn and the Pleiades. Binoculars, telescopes and apps help you never miss an event.
Shooting stars And you kiss Between Moon and planets: the winter sky offers some of the most unforgettable shows of 2025 not only for astronomy enthusiasts, but also for those who simply raise their eyes at sky. From the Cold Supermoon of December 5th to the rains of meteorsup to the alignments between planets and the Moon and the passage of a rare visitor interstellarthe nights of December will be unmissable.
The multicolored shooting stars
The meteor shower most intense of the year, the Geminidswill illuminate the nights from December 1st to 21st, including that of Saint Luciabut they will reach their peak between 13 and 14 Decemberwith approx 150 meteors visible every hour. The ideal observation of shooting stars it starts already from 9pmwhen the radiant, i.e. the apparent point from where they emerge in the sky, located in the constellation dei Twins from which the swarm takes its name, rises in the east and will be clearly visible at its peak at 2 in the morning. The Geminids they are not only abundant, but also unique in their trails multicoloreddue to the chemical composition of the debris that occurs they set fire crossing the Earth’s atmosphere.
December also hosts the Ursidsa smaller, but still fascinating, swarm of meteorites active from December 17th to 26th, peaking on the 22nd and visible starting fromUrsa Minor.
The December 19th will mark a historic moment with the comet 3I/ATLASthird interstellar object never observed from humanity, which will pass 269 million km from Earth, between the orbits of Mars And Jupiter. It will unfortunately be invisible to the naked eye and will require telescopes with long exposuresbut it will be an unmissable event: the giant has been overcome Jupiterwill abandon forever The Solar system.
The meeting of the Moon with the planets
There are then different alignments between the Moon and some planets, starting with Jupiter The December 7 between 4pm and 5pm, and then Saturn The December 27th: with the latter, the closest approach will be recorded at 1:42, allowing you to better observe the rings circling the planet with a telescope. Finally, to end the year on a high note, the December 31st already from the afternoon after 2pm, the Moon will come back to caress them again Pleiades.
To orient yourself among these celestial events and not lose them, in addition to binoculars and telescopes, various things come in handy app as Star Walk 2, Stellarium or Night Sky. With notifications, simulations and augmented reality, they allow you to locate your devices you kiss from the Moon to Jupiter And Saturnand trace the stars falling with their wakes multicolored.
