A Partial Lunar Eclipse is coming up on August 27: How to Photograph It

Soumyadeep Mukherjee

Soumyadeep Mukherjee is an award-winning astrophotographer from India. He has a doctorate degree in Linguistics. His work extends to the sub-genres of nightscape, deep sky, solar, lunar and optical phenomenon photography. He is also a photography educator and has conducted numerous workshops. His works have appeared in over 40 books & magazines including Astronomy, BBC Sky at Night, Sky & Telescope among others, and in various websites including National Geographic, NASA, Forbes. He was the first Indian to win “Astronomy Photographer of the Year” award in a major category.

How to see and photograph the August 2026 partial lunar eclipse 2026 cover

Just a couple of weeks after the August 12 solar eclipse, a deep partial lunar eclipse will take place on August 27–28, 2026, giving skywatchers a chance to watch Earth’s shadow cover most of the Moon. At maximum eclipse, about 93% of the Moon’s diameter will lie inside Earth’s dark umbral shadow. The covered portion should take on a distinctly reddish or coppery appearance.

This will be a partial lunar eclipse, but only a small section of the Moon will remain outside the darkest part of Earth’s shadow at maximum eclipse. The event begins on August 27 in some time zones and continues into August 28 in others. The maximum eclipse occurs at 04:12:49 UTC on August 28. The partial phase will last about 3 hours and 18 minutes.

The event will be visible from large parts of North and South America, Europe, and Africa, along with some areas of western Asia and the Pacific. However, visibility varies significantly by location. For some observers, the Moon will rise or set during the eclipse. Others will see most or all of the event with the Moon well above the horizon.

What happens during a Lunar Eclipse?

A lunar eclipse occurs when the Sun, Earth, and Moon become sufficiently aligned for the Moon to pass through Earth’s shadow. Unlike a solar eclipse, the Moon does not have to pass directly through the center of the shadow for an eclipse to occur. In this case, the alignment is close enough for the Moon to move deeply into the umbra.

These will be the timings of the partial lunar eclipse:

  • Penumbral Eclipse Begins: 01:24 UTC
  • Partial Eclipse Begins: 02:34 UTC
  • Greatest Eclipse: 04:13 UTC
  • Partial Eclipse Ends: 05:52 UTC
  • Penumbral Eclipse Ends: 07:02 UTC

The penumbral stage is difficult to detect by eye because the Moon only becomes slightly darker. The change becomes much more obvious once the umbra reaches the lunar surface. At that point, Earth’s shadow appears to remove a curved section of the bright lunar disk.

A complete sequence of a partial lunar eclipse. The outermost circle shows the penumbral stage.
A complete sequence of a partial lunar eclipse. The outermost circle shows the penumbral stage.

The eclipsed portion can also appear red or orange, as sunlight reaching the Moon will pass through Earth’s atmosphere. The atmosphere scatters and absorbs shorter blue wavelengths more efficiently than longer red wavelengths. Some of the remaining red and orange light is refracted into the umbra and illuminates the lunar surface.

Partial lunar eclipse on April 25th from Úpice Observatory, Czech Republic. Credit: Petr Horálek
Partial lunar eclipse on April 25th from Úpice Observatory, Czech Republic. Credit: Petr Horálek

Where can you see the August 2026 Lunar Eclipse?

The partial lunar eclipse will be visible from North and South America, Europe, Africa, and parts of the Pacific and western Asia. The exact viewing circumstances depend on the observer’s location and the Moon’s position above the horizon.

The dates can be confusing. NASA lists the event as August 27–28 because the eclipse crosses midnight for some locations. The maximum occurs at 04:12:49 UTC on August 28. In the United States, for example, the maximum eclipse occurs at about 9:13 p.m. PDT and 12:13 a.m. EDT.

A mid-telephoto image of a partial lunar eclipse
A mid-telephoto image of a partial lunar eclipse

For the best view, choose a location with an unobstructed horizon and check the Moon’s altitude before the event. The Moon near the horizon can be excellent for landscape compositions, but buildings, trees, and atmospheric turbulence can make detailed lunar photography more difficult.

Anyone planning a dedicated observing session should arrive early. Setting up before the partial phase gives you time to establish focus and composition while the Moon is still bright. It also provides a reference image showing the Moon before Earth’s umbra begins to cover it.

You can compose your lunar eclipse image with a foreground element
You can compose your lunar eclipse image with a foreground element

How to watch it

A lunar eclipse is among the easiest astronomical events to observe. Unlike a solar eclipse, it does not require special eye protection. You can safely watch a lunar eclipse directly with your eyes throughout the event. Binoculars or a telescope will reveal much more detail along the boundary between the bright and eclipsed portions.

A small telescope can show the advancing edge of the umbra crossing lunar craters and maria. The curved shape of Earth’s shadow is also easy to recognise. Observers interested in more detailed work can record the times when specific lunar craters enter or leave the umbra.

The maximum phase will be the main attraction. At maximum eclipse, only a small part of the Moon will remain outside the umbra. This creates a very strong contrast between the bright lunar surface and the darker region.

From some regions, you can watch the eclipse during moonrise
From some regions, you can watch the eclipse during moonrise

How to photograph the partial lunar eclipse

Photographing the Moon is always fun. A partial lunar eclipse is even more fun. You can capture the dark umbra of the Moon along with the bright parts of the rest of the Moon.

Behind the scenes of capturing a lunar eclipse
Behind the scenes of capturing a lunar eclipse

Equipment required

  • For a close-up of the Moon, use a telephoto lens (at least 200- 300 mm; more is better) or a telescope. If you are planning for a timelapse or a composition with the landscape, you will need a wide-angle lens.
  • An external intervalometer or shutter release (this is optional, and if your camera has an internal option, then it is not required)
  • A star tracker (this is not mandatory, but if you have one, it will make things easier)
Partial lunar eclipse captured from Malá Trňa, Slovakia, in October 2023. Credit: Petr Horálek
Partial lunar eclipse captured from Malá Trňa, Slovakia, in October 2023. Credit: Petr Horálek

Camera settings

Aperture

Choose the sharpest aperture of your lens. If you are not aware of your lens’ sharpest aperture, use anything between f/8 – f/11.

Shutter speed

The partial phase is a high-dynamic-range scene; you will need to bracket your shots. You can create a bracket of 2, 3, or 5 shots. The fastest shutter speed will be for the bright surface of the moon, and the slowest one should reveal the umbral part.

ISO

To get the best results, keep an ISO between 100 and 800. Most cameras perform the best within this range.

Do not expect one camera setting to work for the entire eclipse. The Moon’s brightness changes by a large amount between the uneclipsed phase and maximum eclipse. Automatic exposure can also produce inconsistent results because the camera’s metering system responds to the changing balance between bright and dark areas.

An HDR image of the moon during a partial eclipse
An HDR image of the moon during a partial eclipse

Our top tips to get the perfect shot

Here are our top tips to get the best out of this partial lunar eclipse event:

  • Start by checking the timings of the eclipse. Set up your gear well before the eclipse begins.
  • You need to decide how you are going to approach the eclipse. It can either be an image of the maximum partial phase, or a timelapse or you could record the change in phases for 4 hours.
  • If you want to compose the moon with a landscape element, reach the location at least an hour before the eclipse begins. You will have enough time to set up your gear and make necessary changes.
  • Focus on the moon manually before the eclipse begins. Remember that you won’t have much time once the maximum phase begins.
  • Bracket your maximum phase shot. It could be as little as 2 shots, but you can definitely increase that to get a smoother blend across the lunar disk.
  • If you are confident and comfortable, you can take multiple shots of the bracketed exposures. For example, you can take 5 exposures of 1/200s, 5 exposures of 1/100s, and so on. You need to stack each of them first and then blend those.
  • Keep checking your histogram to adjust for the exposure. The moon will become dimmer as the penumbral phase starts and progresses. Parts of the moon will become even dimmer when the umbral phase starts.
  • When taking multiple shots of the maximum phase, do not move your camera or tripod. The moon (and every other object in the sky) undergoes field rotation. Moving your camera or lens will introduce it, and it might get somewhat difficult to align the layers.

Even if you are not planning to photograph the lunar eclipse, go out and enjoy it with your naked eyes or with binoculars.

A partial lunar eclipse near its peak, as visible from the roof of the ESO Headquarters in Garching, Germany on 7 August 2017. Credit: ESO/P. Horálek
A partial lunar eclipse near its peak, as visible from the roof of the ESO Headquarters in Garching, Germany on 7 August 2017. Credit: ESO/P. Horálek

Clear skies!



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Soumyadeep Mukherjee

Soumyadeep Mukherjee

Soumyadeep Mukherjee is an award-winning astrophotographer from India. He has a doctorate degree in Linguistics. His work extends to the sub-genres of nightscape, deep sky, solar, lunar and optical phenomenon photography. He is also a photography educator and has conducted numerous workshops. His works have appeared in over 40 books & magazines including Astronomy, BBC Sky at Night, Sky & Telescope among others, and in various websites including National Geographic, NASA, Forbes. He was the first Indian to win “Astronomy Photographer of the Year” award in a major category.

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