Understanding Supermoons: A Celestial Phenomenon
What is a Supermoon?
A supermoon occurs when the Moon is either full or new, coinciding with its closest approach to Earth in its elliptical orbit. This phenomenon happens several times each year, with unique names assigned based on the month in which they occur.
Upcoming Supermoon on April 27
This Sunday, April 27, a remarkable celestial event will take place: the Moon will be at its perigee—approximately 221,900 miles from our planet. This distance is notably about 17,000 miles closer than the average distance between the Earth and the Moon, qualifying it as a supermoon.
However, visibility will be hindered, as this supermoon coincides with a new Moon, meaning that the illuminated side of the Moon faces away from Earth. As a result, observers will see none of its surface light.
Lunar Phases and Viewing Conditions
During a new Moon, the side of the Moon that is illuminated by the Sun faces away from Earth, rendering it invisible to our eyes. NASA notes that new Moons typically rise and set with the Sun, which further complicates any observational opportunities.
For those interested in astronomy, this phase of the Moon is actually the most favorable for observing other celestial events, such as meteor showers and planets. This weekend, Venus will be highly visible in the sky, shining brightly just before dawn.
Additionally, the recent Lyrid Meteor Shower, which peaked on April 22, will continue to offer opportunities for stargazing throughout the end of the month.
Supermoon Frequency in 2025
According to discoveries reported by EarthSky.org, there will be five supermoons this year during the new Moon phase, juxtaposed with three that will take place during a full Moon. The next full supermoon will occur in October, providing a more favorable opportunity for viewing.
Conclusion
While the upcoming supermoon on April 27 may be invisible to most observers due to its alignment with the new Moon, those interested can still take advantage of the night sky by observing planets and meteor showers. As the year progresses, skywatchers look forward to clearer opportunities presented by the upcoming full supermoons.