The partial lunar eclipse will darken most of the visible surface of the August sturgeon moon

The partial lunar eclipse will darken most of the visible surface of the August sturgeon moon

August’s full sturgeon moon will share the night sky with a dramatic partial lunar eclipse, as Earth’s shadow covers nearly the entire visible surface of the Moon. The celestial event will offer sky-watchers across much of the Americas an impressive opportunity to observe the changing lunar landscape.

The end of August will bring more than an ordinary full moon. The annual sturgeon moon will coincide with a major partial lunar eclipse, creating one of the most striking astronomical displays of the month. Although the event will technically be classified as a partial eclipse, the Moon will come remarkably close to total coverage, with approximately 96% of its bright, visible surface passing into Earth’s darkest shadow.

For people interested in astronomy, as well as casual observers who simply enjoy looking at the night sky, the event will provide an accessible opportunity to witness the interaction between the Sun, Earth and Moon. Large areas of North and South America are expected to have the chance to see most or all of the eclipse, depending on local weather conditions and the visibility of the night sky.

The mechanics behind the partial lunar eclipse

A lunar eclipse occurs when the Earth moves directly between the Sun and the Moon. In this position, the planet blocks sunlight that would normally illuminate the lunar surface and casts its shadow across the Moon.

The dark core of Earth’s shadow is referred to as the umbra. Observers behold a total lunar eclipse when the whole Moon traverses this specific zone. Alternatively, a partial lunar eclipse takes place if just a portion of the Moon enters the umbra while the remaining segment stays outside of it.

That is what will happen during the August event. However, this particular eclipse will be unusually extensive because Earth’s shadow will cover about 96% of the Moon’s illuminated surface. As a result, the visual difference between this event and a total eclipse may appear relatively small to some observers.

Lunar eclipses can only take place during a full moon since the Earth needs to be located right between the Sun and its natural satellite. Even so, a lunar eclipse does not happen every single month. The orbit of the Moon is inclined relative to Earth’s trajectory around the Sun, meaning that the three celestial bodies fail to reach the required alignment during each full moon.

The eclipse is forecasted to commence late Thursday night, attaining its peak shortly past midnight within the Eastern Time zone. The exact instant the Moon looks most luminous will occur just moments afterward, bringing the two celestial phenomena virtually together.

For observers in favorable locations across the Americas, the nighttime timing should make the phenomenon easier to follow as Earth’s shadow gradually moves across the lunar surface.

Will the Moon turn red or orange?

One of the most identifiable characteristics of a lunar eclipse is the potential for the Moon to acquire crimson or orange hues.

During a total lunar eclipse, the Moon can occasionally take on a deep crimson, copper, or orange hue. This occurrence is frequently called a “blood moon,” even though the title serves as a popular label rather than a scientific designation.

The color transformation stems from Earth’s atmosphere. When sunlight passes along the planet’s periphery, the shorter wavelengths linked to violet and blue hues get dispersed much more readily. Conversely, the extended wavelengths—encompassing orange and red illumination—tend to press on through the atmospheric layer and ultimately strike the Moon.

Because this event will be a near-total partial eclipse rather than a complete one, its exact appearance will be difficult to predict in advance.

The portion of the Moon deepest within Earth’s shadow could become noticeably darker and may develop reddish tones, particularly in areas farthest from the remaining illuminated section. Atmospheric conditions can influence how intense those colors become.

This inherent unpredictability adds to the visual appeal of lunar eclipses. Every single event looks distinctly different, while atmospheric conditions on Earth can alter the hues displayed by the Moon.

The night could potentially offer additional astronomical interest as geomagnetic activity may also create conditions favorable for auroras in parts of the northern United States. Although auroras and lunar eclipses are separate phenomena, the possibility of both occurring during the same period could make the night particularly memorable for sky-watchers in certain regions.

How common are lunar eclipses?

Lunar eclipses are not exceptionally rare, but they do not occur with the same frequency every year.

The number of lunar eclipses varies depending on the orbital alignment of the Earth, Moon and Sun. Many years offer two opportunities to observe a lunar eclipse, while some years can include three. In other cases, the number of visible eclipses from particular locations may be more limited.

Earlier in 2026, another lunar eclipse occurred in March. That event was a total lunar eclipse, with some of the best viewing conditions occurring across Australia and parts of the Pacific region.

Each eclipse is different. Some are total, while others are partial or penumbral. Their duration, appearance and visibility also depend on the location of the observer and the exact geometry of the celestial alignment.

The August eclipse will stand out because of the large percentage of the Moon that will enter Earth’s umbra. With roughly 96% of the visible lunar surface affected, it will rank as a particularly dramatic example of a partial lunar eclipse.

Ways to view the lunar eclipse

One of the benefits of a lunar eclipse is that it can be watched safely without the need for specialized protective gear.

Unlike a solar eclipse, which requires proper eye protection when viewing the Sun, a lunar eclipse can be watched directly with the naked eye. No special glasses or filters are necessary.

Still, selecting the ideal spot can greatly enhance the overall experience.

Bright streetlights, buildings and other sources of artificial illumination can make it more difficult to appreciate the details of the night sky. An open area away from strong city lights is generally the best choice.

A nearby park, a quiet open field or another location with an unobstructed view of the sky can provide better conditions. It is also useful to avoid places where tall buildings or trees may block the Moon.

Binoculars are not required, but they can make the gradual movement of Earth’s shadow easier to observe. A telescope can reveal additional details on the lunar surface, although the eclipse itself will remain clearly visible without any equipment.

Atmospheric conditions will ultimately dictate the experience. Even across zones where the eclipse remains completely unobstructed, cloud cover might prevent spectators from viewing the Moon. Reviewing the local forecast prior to stepping outside can help pinpoint optimal viewing conditions.

The event also provides an opportunity to simply spend time observing the sky. The transformation will occur gradually, allowing viewers to follow the changing appearance of the Moon rather than witnessing only a brief moment.

Why August’s full moon is called the sturgeon moon

The full moon in August is widely known as the sturgeon moon, a name connected to Indigenous traditions in North America.

The designation is particularly associated with Algonquin-speaking peoples and other Native American communities living near the Great Lakes. During this period of the year, lake sturgeon were historically abundant and represented an important food source.

Like many traditional names for full moons, the term reflects seasonal changes and the relationship between communities and the natural environment.

However, the sturgeon moon is not the only name used for August’s full moon. Different Indigenous communities developed their own names based on the plants, animals and seasonal events that were most important in their regions.

Some Indigenous groups associated the August moon with black cherries, while others connected it to the period when green corn was growing or being harvested.

These names offer a reminder that the Moon has long served as more than an object of scientific observation. For generations, lunar cycles were closely connected to seasonal traditions, food sources and the rhythms of everyday life.

More full moons to come in 2026

The astronomical calendar will keep presenting multiple full moons following the August sturgeon moon.

September is set to witness the harvest moon, which will then give way to October’s hunter’s moon. The beaver moon is scheduled for November, whereas the full moon of December traditionally bears the name of the cold moon.

The closing months of the year will additionally generate heightened interest, since the full moons of November and December are anticipated to manifest under circumstances typically linked to supermoons.

A supermoon takes place when a full moon occurs while the Moon is near one of the closest points to Earth in its elliptical orbit. From the ground, the Moon may appear somewhat larger and brighter than usual.

Although the difference may not always be obvious without comparison, supermoons remain among the most popular celestial events for photographers and sky-watchers.

The August lunar eclipse will nevertheless be one of the year’s more distinctive opportunities to observe the Moon. The combination of a full sturgeon moon and a partial eclipse covering almost the entire lunar surface will transform an ordinary night into a visible demonstration of the movements of the Earth, Moon and Sun.

For those living in areas with favorable visibility, all that will be needed is a clear sky and a good view upward. As Earth’s shadow slowly advances across the Moon, observers will be able to watch a celestial alignment that illustrates the remarkable precision of the solar system.

With no special equipment required, the near-total partial lunar eclipse will be accessible to anyone willing to step outside and look toward the night sky. Whether viewed through binoculars, a telescope or simply with the naked eye, the event will offer a reminder that some of the most impressive astronomical phenomena can be experienced directly from Earth.

By Anna Edwards

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