Weather Tidbits: Supermoon & Micromoon

This Weather Tidbits explores the differences between a supermoon and a micromoon. A supermoon occurs when the moon’s approaches its closest point on orbit to the earth or perigee. During a supermoon, the moon will appear 30% brighter & 14% bigger than its counterpart, the micromoon. A micromoon occurs when the moon’s is at its furthest point on orbit to Earth or apogee, which will give it a smaller & dimmer appearance. The definition of a supermoon varies with some using percentages such as 90% to its perigee or closest approach while others say it’s 360,000 kilometers or less. A micromoon is defined usually with a distance of 405,000 kilometers or greater. Interestingly, the word “supermoon” is not an astronomical term but an astrological one; while a “micromoon” is not an astrological term with its astronomical name called Apogee Moon.

Categories: Weather Tidbits