Supermoon Phenomenon 2025: How to See The Brightest Moon of the Year?

Liputan6.com, Jakarta A stunning celestial phenomenon will grace the skies in October 2025: the October Harvest Moon Supermoon.

This rare event combines a full moon, known as the Harvest Moon, with a supermoon, where the Moon is at its closest point to Earth.

This special moment is predicted to be the brightest and largest appearance of the Moon of the year.

People around the world will have the opportunity to witness this beauty at its peak illumination, which will occur on the evening of Monday, October 6, 2025, or early morning of Tuesday, October 7, 2025, Universal Time.

This extraordinary appearance will make the Moon appear larger and brighter than usual.

On the night of October 6–7, 2025, the full moon will coincide with a supermoon — and it’s also the Harvest Moon. In 2025, there will be three consecutive supermoons, on October 7, November 5, and December 4. pic.twitter.com/OosE8TqvFy

— Shining Science (@ShiningScience) October 1, 2025

A supermoon is a celestial phenomenon that occurs when a full or new moon coincides with the Moon's closest point to Earth.

This closest point in the Moon's elliptical orbit is known as perigee.

This condition makes the Moon appear larger and brighter than usual in the night sky.

According to The Planetary Society, a supermoon occurs approximately once a year when the full Moon is near its closest point to Earth.

The Moon will be about 224,600 miles from Earth, compared to its average distance of 238,900 miles.

According to NASA, this proximity will make the Moon appear about 30% brighter and 14% larger than a typical full Moon.

The term "supermoon" was first coined by astrologer Richard Nolle in 1979.

While not an official astronomical term, it is popularly used to describe a full Moon that is within 90% of its closest distance to Earth, making it an easily recognizable phenomenon.

The October Harvest Moon Supermoon in 2025 will be the first Supermoon of the year.

It is predicted to be the largest and brightest full Moon visible throughout 2025, offering a truly spectacular sight.

This full moon will reach its peak illumination on Monday, October 6, 2025, at 11:47 PM Eastern Time (EDT).

Universally, this will occur on Tuesday, October 7, 2025, at 03:47 UTC or 04:48 AM BST.

This is the best time to observe the Moon's maximum brightness and size.According to Star Walk, this Moon will appear about 6.6% larger and 13% brighter than the average full Moon.

However, some other sources, such as NASA and Fox Weather, even mention that the Moon could appear up to 14% larger and 30% brighter.

This October Harvest Moon Supermoon is also the first of three consecutive Supermoons to occur in late 2025, followed by Supermoons in November and December.

Another unique feature is that this is the first October Harvest Moon since 2020 and the latest Harvest Moon since 1987, making it an extremely rare event.

Viewing the October Harvest Moon Supermoon doesn't require any special equipment; the naked eye is sufficient.

However, there are a few tips to maximize your viewing experience and fully enjoy the Moon's beauty.

The best time to view the Harvest Moon Supermoon is at moonrise or moonset, when the Moon is near the horizon.

At these times, a phenomenon known as the "Moon illusion" will make it appear larger and more dramatic.

This illusion occurs due to the visual comparison with objects on land.For the best viewing, find an open location with minimal light pollution, such as a park, large field, or coastline.

Getting away from the bustle of the city will help you see the Moon more clearly and enjoy the "scale and drama" of the largest Moon of the year.

While it can be enjoyed without any aids, using binoculars or a telescope can enhance your viewing experience.