Image Source: CNN
This weekend, stargazers and moon enthusiasts are in for a delightful treat as a blue moon graces the night sky. This event is not just a whimsical phrase; it’s an actual celestial phenomenon that occurs when there are two full moons in a single month. With the first full moon earlier this month, the second one—this blue moon—will reach its peak tonight, marking an extraordinary occasion that only happens approximately every two to three years.
What to Expect from the Blue Moon Tonight
The blue moon will peak at 4:45 a.m. ET on Sunday, May 30. However, for most regions in the Americas, Africa, and Europe, the moon will appear fullest on the night of May 30. Meanwhile, viewers in Australia, New Zealand, and Asia can catch the best view on May 31.
Although the term “blue moon” suggests the moon will have a striking color, it will actually appear its usual silvery white or golden hue. The name has its roots in language history, dating back to the 1500s, where it was used to signify something improbable. In 1937, the phrase became well-known through the Maine Farmer’s Almanac, adapting to the modern meaning we use today.
Understanding the Science Behind a Blue Moon
The moon cycle typically lasts 29.5 days, which doesn’t align perfectly with the calendar month, resulting in some months having two full moons. The second of these full moons is termed a “calendrical blue moon.” Interestingly, it’s also possible for a single year to feature two blue moons; the last such occurrence was in 2023, while the next is forecasted for 2037, according to science experts.
There is, however, another type of blue moon known as a “seasonal blue moon,” which occurs when four full moons appear in a single season instead of the usual three. The upcoming seasonal blue moon will occur on May 20, 2027, providing yet another opportunity for us to look forward to.
How to Enjoy the Blue Moon Tonight
Don’t miss the chance to catch this magnificent sight! If you want to photograph the moon, experts advise waiting until after sunset when the sky has a beautiful blue tint. This may make for stunning images as the full moon rises between 5:30 and 6:30 p.m. in most time zones. With a micromoon accompanying this blue moon—meaning it will be at its farthest point from Earth during its orbit—make sure to pay close attention to the sky tonight. The moon will be approximately 252,334 miles (406,093 kilometers) from our planet during this event, as opposed to its average distance of about 238,855 miles (384,400 kilometers).
“If you’re used to comparing the moon to known things in your landscape, you can see that 10% difference,” said Dr. Pamela Gay, a senior scientist at the Planetary Science Institute. “But to the average person, you’re not going to notice the difference at all.”
FAQs About the Blue Moon Tonight
What is a blue moon?
A blue moon refers to the second full moon in a single month, a rare occurrence that happens every two to three years.
Will the moon actually appear blue?
No, despite the name, the moon will appear its traditional silvery or golden color—not blue. However, it can appear blue during rare atmospheric events.
When will the blue moon peak?
The blue moon will reach its peak tonight, May 30, at 4:45 a.m. ET. Observers in the Americas and Europe can see it fully on May 30.
What is a micromoon?
A micromoon occurs when the moon is at its farthest point from Earth in its orbit, making it appear slightly smaller than average.
How often do blue moons happen?
Blue moons occur approximately every two to three years, with the next one expected in 2037.
