Editing Epimetheus (moon) (section)

== Physical characteristics ==
There are several Epimethean craters larger than 30&nbsp;km in diameter, as well as both large and small ridges and grooves. The extensive cratering indicates that Epimetheus must be quite old. Janus and Epimetheus may have formed from a disruption of a single parent to form co-orbital satellites, but if this is the case the disruption must have happened early in the history of the satellite system. From its very low density and relatively high [[albedo]], it seems likely that Epimetheus is a very porous icy body.{{sfn|JPL/NASA: Epimetheus}} There is considerable uncertainty in these values, however, and so this remains to be confirmed.{{Citation needed|date = October 2019}}

The south pole is dominated by a large, flat basin with a central peak that covers much of the moon's southern hemisphere, which may be the remains of a large impact crater.{{sfn|JPL/NASA: Epimetheus}}

There appear to be two terrain types: darker, smoother areas, and brighter, slightly more yellowish, fractured terrain. One interpretation is that the darker material evidently moves down slopes, and probably has a lower ice content than the brighter material, which appears more like "bedrock". Nonetheless, materials in both terrains are likely to be rich in water ice.{{sfn|JPL/NASA: Epimetheus Revealed}}

===Features===
Craters on Epimetheus, like those on Janus, are named after characters in the legend of [[Castor and Pollux]].<ref>[https://planetarynames.wr.usgs.gov/Page/EPIMETHEUS/target USGS: Epimetheus nomenclature]</ref>

{| class="wikitable"
|+ Named Epimethean craters
|-
! width=100 | Name !! Pronunciation !! Latin or Greek 
|-
| [[Hilaeira]] || {{IPAc-en|h|ɪ|l|eɪ|ˈ|ɪər|ə}}<!--per alt spelling Hilaëra--> || Ἱλάειρα
|-
| [[Castor and Polydeuces|Pollux]] || {{IPAc-en|ˈ|p|ɒ|l|ə|k|s}} || Pollūx 
|}

The first has been misspelled 'Hilairea' at USGS, which would presumably be pronounced {{IPA|/hɪˈlɛəriə/}}.