The word "MASCON" is spelled as /ˈmæskɒn/ in IPA phonetic transcription. It is a term used in aerospace engineering to refer to a mass concentration phenomenon on the Moon’s surface, resulting in an irregular gravitational field. The word is a combination of "mass" and "concentration." The "M" and "A" are pronounced as in the word "massive," while the "S" and "C" are pronounced together as "sk," similar to the word "skill." The emphasis is on the first syllable, "MAS."
A mascon is a term used in astronomy and geology to refer to mass concentration, primarily found on celestial bodies such as the Moon. Derived from the combination of "mass" and "concentration," a mascon can be defined as a region on the Moon's surface with an excess of mass. These regions exhibit a higher-than-average gravitational pull compared to their surrounding areas.
Mascons are typically formed as a result of large impacts, such as meteorite collisions, which cause the creation of a basin or crater. The intense impact melts the crust and the resulting molten material accumulates in the basin, creating a dense, high-mass region. Over time, this concentrated mass leads to a localized increase in gravitational attraction.
The effects of mascons are observable through various measurements, including variations in the lunar gravitational field and orbital perturbations experienced by spacecraft orbiting the Moon. These variations can impact lunar missions, as they require careful navigation planning to compensate for the gravitational anomalies caused by mascons.
While mascons are primarily associated with the Moon, the term can also be used to describe similar gravitational anomalies observed on other celestial bodies, such as Mars. These localized mass concentrations play a crucial role in understanding the geology and overall structure of these extraterrestrial bodies.