The sky this week presents a rare celestial event: a second full moon within the same calendar month, known as a Blue Moon. While the name may sound dramatic, the moon's color remains unchanged. This Blue Moon, occurring at 8:45 UTC on May 31, 2026, also qualifies as a micromoon, meaning it is the most distant full moon of the year. According to EarthSky, the moon will be about 252,360 miles (406,134 km) from Earth, slightly farther than the average distance of roughly 238,900 miles (384,472 km). Although the size difference is too subtle for the human eye to notice, the event is still a treat for skywatchers.
What Is a Blue Moon?
A Blue Moon is simply the second full moon in a single calendar month. This occurs because the lunar cycle is about 29.5 days, while our calendar months are 30 or 31 days long. In May 2026, the first full moon appears at the start of the month, and the second arrives as the month ends. Despite the name, there is no change in the moon's color.
When and How to Watch the Blue Moon
The most interesting viewing times are the evenings around the full moon. On May 30, the moon rises near sunset, appearing slightly oversized near the horizon due to atmospheric effects. It carries a warm orange tint at first, gradually whitening as it climbs higher. On May 31, the moon reaches its official full phase, completing the cycle that earns it the Blue Moon label. To get the best view, find a location with a clear view toward the southeast, away from buildings and trees that might block the horizon.
Planets Join the Show
In addition to the moon, two planets are putting on a show in the western sky after sunset. Venus, bright and low, is hard to miss even in twilight. Jupiter sits higher, less intense but steady. Each evening, the distance between them decreases. By June 9, they reach their closest pairing, sitting low in the west after sunset. No special equipment is needed—just a clear view and patience as the sky darkens.
This sequence of events offers a rewarding experience for casual observers and dedicated skywatchers alike. The Blue Moon and the planetary conjunction remind us of the dynamic nature of our solar system and the simple joy of looking up.
