NASA defines a supermoon as up to 15% larger and 30% brighter

According to Nasa, a supermoon occurs when the moon, due to its proximity to Earth, appears up to 15% larger and 30% brighter than a regular full moon.

The explanation compares the supermoon’s appearance directly with that of a regular full moon and attributes the difference to the moon’s closer position to Earth.

No additional details are provided in the source material.

Key Topics

Science, Supermoon, Moon, Earth, Full Moon, Nasa