Editing Adrastea (moon) (section)

== Physical characteristics ==
Adrastea has an irregular shape and measures 20×16×14&nbsp;km across.{{sfn|Thomas Burns et al.|1998}} A surface area estimate would be between 840 and 1,600 (~1,200) km<sup>2</sup>. This makes it the smallest of the four inner moons. The bulk, composition, and mass of Adrastea are not known, but assuming that its mean density is like that of [[Amalthea (moon)|Amalthea]],{{sfn|Burns Simonelli et al.|2004}} around 0.86&nbsp;g/cm<sup>3</sup>,{{sfn|Anderson Johnson et al.|2005}} its mass can be estimated at 2{{E-sp|15}}&nbsp;kg. Amalthea's density implies that the moon is composed of water [[ice]] with a [[porosity]] of 10–15%, and Adrastea may be similar.{{sfn|Anderson Johnson et al.|2005}}

No surface details of Adrastea are known, due to the low resolution of available images.{{sfn|Thomas Burns et al.|1998}}