https://www.zmescience.com/science/news-science/2023-blue-moon-supermoon/
What about supermoons?
When the moon reaches its closest point to Earth in its elliptical orbit, known as perigee, it appears larger and more luminous than usual. This captivating dance of orbital dynamics results in a spectacle that has inspired poets and astronomers alike. During this event, the moon can shine up to 30% brighter than its average brilliance.
This year, we’ll have a coincidental Blue Moon and Supermoon, a rare event that won’t grace our skies again in this century.