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Eminescu (crater)

Crater on Mercury

Summary

Crater on Mercury

Field	Value
name	Eminescu
image	Eminescu_crater_EN0108828468M.jpg
caption	Eminescu is the prominent crater near the center of this image.
location	Eminescu quadrangle Mercury
type	Central-peak impact crater
coordinates
coordinates_footnotes
diameter	129 km
eponym	Mihai Eminescu

Eminescu is a peak ring crater on Mercury 125 km in diameter. Since there are very few later craters superposed on it, Eminescu appears to be a young crater formed around one billion years ago. It has a transitional morphology between larger more complex impact basins like Raditladi and smaller simpler central peak craters.

The impact ejecta and chains of secondary craters extend as far as one radius from the rim. There are no bright or dark crater rays, with the crater rim itself being higher in altitude than the surrounding cratered plains. The crater walls are degraded by slumping, forming distinct blocks of material. The crater floor consists of complex structures, including ejecta deposits, impact melts and possibly units placed by effusive volcanism.

The bright bluish central peaks within the crater are arranged in a circular pattern forming a peak ring. A confirmed dark spot is present in Eminescu, at the southwestern peak ring. This dark spot is associated with the hollows.

The crater is named after Mihai Eminescu, a Romanian poet (1850–1889).

File:Eminescu crater MESSENGER WAC IGF to RGB.jpg|Exaggerated color view of Eminescu File:Eminescu crater MESSENGER WAC IGF to RGB 2.jpg|Oblique color view File:Eminescu EN1025911602M.map.jpg|The central peak complex of Eminescu is surrounded by hollows

References

"Eminescu". [[IAU]]/[[USGS]]/[[NASA]].
(April 17, 2008). "PIA10610: Now Introducing: Eminescu". [[NASA]].
Schon, S.C.. (2010). "Eminescu and the transition to peak-ring basins on Mercury". 41st Lunar and Planetary Science Conference.
hollows]].[https://messenger.jhuapl.edu/Explore/Science-Images-Database/gallery-image-1308.html Dreaming of a white Christmas], 25 December 2013, NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Zhiyong Xiao, Robert G. Strom, David T. Blewett, Paul K. Byrne, Sean C. Solomon, Scott L. Murchie, Ann L. Sprague, Deborah L. Domingue, Jörn Helbert, 2013. ''Dark spots on Mercury: A distinctive low-reflectance material and its relation to hollows''. Journal of Geophysical Research Planets. [https://doi.org/10.1002/jgre.20115 doi.org/10.1002/jgre.20115]

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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