On Wednesday, November 5, 2025, residents of Earth will be able to see the largest full moon of the year — the so-called "supermoon." Lyudmila Koshman, an astronomer at the Moscow Planetarium, noted that the Moon will be slightly brighter than usual and visually noticeable in clear weather.
The term "supermoon" is not astronomical, but amateur: it refers to a full moon occurring near perigee — the closest point of the Moon's orbit to Earth. At this moment, the visible diameter of the Moon appears to be approximately 14% larger than at apogee — the farthest point of the orbit from Earth. The difference is almost imperceptible to the eye, but in favorable weather, the Moon will be approximately 10% brighter than usual.
The full moon will occur on November 5 at 16:20 Moscow time, and the Moon will be at perigee on November 6 at 01:30 Moscow time. The difference between the events will be only 9 hours 10 minutes, which makes this full moon the largest in 2025. The next large full moon, on December 5, will occur slightly further from Earth — by 129 km, and the time difference will be 12 hours 08 minutes.
The moon is especially spectacular near the horizon, against the background of distant objects. However, weather conditions may interfere with the observation: variable cloudiness is expected in Moscow, and cloudy and rainy weather in St. Petersburg.