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Health and Science - August 12, 2025

Perseid Meteor Shower Peaks Despite Moonlight Interference: Best Viewing Windows Revealed

Prepare to witness one of the year’s most spectacular meteor shows, the Perseids, gracing the night sky this week.

The Perseid meteor shower, renowned for its brilliant display of numerous bright meteors leaving trails behind, peaked at 4 p.m. ET on Tuesday. In years past, it typically produced approximately 40 to 50 visible meteors per hour. However, this year’s showing may be less prolific due to the shower occurring shortly after August’s full moon.

The moon will be in a waning gibbous phase and around 85% illuminated, making meteor-watching more challenging. Experts predict that between 10 to 20 meteors per hour may be observed.

Though the peak of the Perseids transpired well before sunset in the US on Tuesday, there are two optimal viewing periods between Tuesday night and Wednesday morning for sky-gazers to maximize their chances of spotting a meteor.

“Between dusk and moonrise on the evening of August 12, there’s going to be a one-hour gap before the moon rises,” noted Robert Lunsford, fireball report coordinator for the American Meteor Society. This interval presents an opportunity to seek Perseid activity.

These meteors emanate from all directions within the constellation Perseus, which resides in the northern sky. However, due to Perseus being low on the horizon at this time, much of the meteor activity will be obscured from view.

“Any meteors you do see at that time are going to be called Earth grazers because they can just graze the upper atmosphere,” Lunsford explained. While most Perseid meteors last only for mere milliseconds, the earth grazers you might encounter “will be very long and will last two or three seconds.”

The final hours before dawn on Wednesday is the other recommended viewing window for observing the shower. “There’ll be a bright moon up in the southern sky, but if you turn your gaze northward and look kind of toward the constellation Perseus, you can still see the brighter meteors.”

The peak of the Perseids coincides with the conjunction of Venus and Jupiter, and these planets will remain close and brilliantly shining in the eastern sky before sunrise. The best views will be obtainable during this time.

“These are the two brightest planets,” Lunsford stated. “This (conjunction) happens about once a year, but it’s still breathtaking when you get the two brightest planets so close together.”

Saturn will join the celestial display in the late evening hours on Tuesday, appearing near the moon and rising before midnight, according to EarthSky.

The following are the anticipated peak dates for four additional meteor showers in 2025, as per the American Meteor Society and EarthSky:

Four more full moons are expected this year, with supermoons taking place in October, November, and December. Their dates are:

Two eclipse events will occur as summer concludes.

A total lunar eclipse will be visible in Europe, Asia, Australia, Africa, parts of eastern South America, Alaska, and Antarctica on September 7 and 8, according to Time and Date.

During a lunar eclipse, the moon passes directly into Earth’s shadow as the sun, Earth, and the moon align. This causes the moon to appear darker or dimmed. When the moon is in the darkest part of Earth’s shadow, the sun’s rays peek out from behind Earth, refracting light onto the moon, giving it a reddish hue, often referred to as a “blood moon.”

Two weeks later, on September 21, a partial solar eclipse will be visible in parts of Australia, the Atlantic, the Pacific, and Antarctica.

A solar eclipse occurs when the moon moves between the sun and Earth. In the case of a partial solar eclipse, the moon does not fully obstruct the sun, creating a crescent effect, as if the moon took a bite out of the sun.