The Castor supermoon, the second of the year, occurs this Wednesday, November 5, 2025, when the full Moon is positioned at perigee, less than 360 thousand kilometers from Earth. The phenomenon makes the satellite around 14% larger and up to 30% brighter than normal, visible to the naked eye in different regions of the planet. Observation depends on favorable weather conditions and covers continents such as America, Europe, Africa and Asia.
The event remains noticeable for three consecutive days, peaking on the night of November 5th. Astronomers highlight that the coincidence between the full phase and perigee creates the magnified visual effect. Countries in different time zones record varying times for moonrise.
- In South American cities, sunrise occurs around 6pm local time.
- In Western Europe, the Moon rises around 5pm.
- Regions in Asia observe the phenomenon from 7pm.
Definition of the phenomenon
The supermoon results from the Moon’s elliptical orbit around the Earth. At perigee, the minimum distance allows greater visual proximity.
Astronomers explain that the term, although popular, accurately describes orbital alignment. The optical effect increases the apparent diameter compared to distant aposeleneios.
Observation times
The best time for viewing begins just after local sunset. In European capitals, the Moon emerges between 4pm and 6pm. Asian cities record sunrises between 6pm and 8pm. Observers should look for locations with a clear horizon.
Ideal conditions
Clear skies make it easy to enjoy without equipment. Binoculars or simple telescopes highlight details of the lunar surface. The Moon appears more detailed due to the intensified brightness. Regions with reduced light pollution offer better results.
Upcoming events
Another supermoon occurs on December 4, 2025, ending the annual sequence. This phenomenon repeats the pattern of orbital proximity.
Astronomers monitor lunar cycles to predict future occurrences. The year typically records three to four supermoons.
Global visibility
The event covers the northern and southern hemispheres simultaneously. Equatorial countries have the Moon high in the sky at night. International observatories transmit live images. Astronomy apps provide real-time visibility maps.
Optical characteristics
The 30% increase in brightness results from the shorter Earth-Moon distance. The apparent diameter increases by 14%relative to the average.
Atmospheric effects can dye the Moon orange tones on the horizon. Orbital proximity does not alter tides significantly beyond normal.
Tips for Observers
Choose elevated areas or areas away from urban centers. Avoid nights with forecast clouds.
- Check local weather forecasts.
- Use apps to track exact position.
- Record photos with adjusted exposure.
The Castor supermoon represents the closest point to the Moon in 2025, with an exact distance of approximately 356 thousand kilometers at its peak. The phenomenon attracts worldwide attention due to its accessibility and immediate visual impact, without the need for specialized instruments for basic appreciation.
