Wunda (crater)

Short description: Crater on Umbriel

Wunda is a bright feature at the top of this image of Umbriel.

[ ⚑ ]  7°54′S 273°36′E﻿ / ﻿7.9°S 273.6°E﻿ / -7.9; 273.6[1]

Wunda is a large crater on the surface of Uranus' moon Umbriel.[2] It is 131 km in diameter and is located near the equator of Umbriel. The crater is named after Wunda, a dark spirit of Australia n aboriginal mythology.[1]

Wunda has a prominent albedo feature on its floor, which takes the shape of a ring of bright material at least 10 km in radial width.[3] The reason for its brightness, which stands out from the very dark composition of the moon as a whole, is unknown.[2] It may be either a fresh impact deposit or a deposit of carbon dioxide ice, which formed when the radiolytically formed carbon dioxide migrated from all over the surface of Umbriel and got trapped inside relatively cold Wunda.[4]

## References

Citations

1. ↑ 1.0 1.1 USGS: Umbriel: Wunda.
2. ↑ 2.0 2.1 Plescia 1987.
3. ↑ Smith Soderblom et al. 1986.
4. ↑ Sori, Michael M.; Bapst, Jonathan; Bramson, Ali M.; Byrne, Shane; Landis, Margaret E. (2017-07-01). "A Wunda-full world? Carbon dioxide ice deposits on Umbriel and other Uranian moons". Icarus 290: 1–13. doi:10.1016/j.icarus.2017.02.029. Bibcode: 2017Icar..290....1S.

Sources

* Plescia, J. B. (December 30, 1987). "Cratering history of the Uranian satellites: Umbriel, Titania and Oberon". Journal of Geophysical Research 92 (A13): 14,918–14,932. doi:10.1029/JA092iA13p14918. ISSN 0148-0227. Bibcode: 1987JGR....9214918P.
* Smith, B. A.; Soderblom, L. A.; Beebe, A.; Bliss, D.; Boyce, J. M.; Brahic, A.; Briggs, G. A.; Brown, R. H. et al. (4 July 1986). "Voyager 2 in the Uranian System: Imaging Science Results". Science 233 (4759): 43–64. doi:10.1126/science.233.4759.43. PMID 17812889. Bibcode: 1986Sci...233...43S. https://zenodo.org/record/1230972.
* USGS/IAU (October 1, 2006). "Wunda on Umbriel". Gazetteer of Planetary Nomenclature. USGS Astrogeology. http://planetarynames.wr.usgs.gov/Feature/6587?__fsk=-458229313.

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Moons of Uranus

* Generally listed in increasing distance from Uranus

Inner|

* Rings of Uranus
* Cordelia
* Ophelia
* Bianca
* Cressida
* Desdemona
* Juliet
* Portia
* Rosalind
* Cupid
* Belinda
* Perdita
* Puck
* Mab

Major (spheroid)|

* Miranda
* Ariel
* Umbriel
* Titania
* Oberon

Outer (irregular)|

* Francisco
* Caliban
* Stephano
* Trinculo
* Sycorax
* Margaret
* Prospero
* Setebos
* Ferdinand

Geological features|

* Arielian
* Kachina Chasmata
* Yangoor
* Mirandian
* Verona Rupes
* Oberonian
* Hamlet
* Mommur Chasma
* Puckian
* Titanian
* Gertrude
* Messina Chasmata
* Ursula
* Rousillon Rupes
* Umbrielian
* Wunda
* Vuver
* Skynd

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