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Oxo

Oxo imaged by Dawn from LAMO
Feature type	Impact crater
Location	Ceres
Coordinates	42°13′N 359°36′E / 42.21°N 359.6°E / 42.21; 359.6
Diameter	10 kilometres (6.2 mi)
Depth	4,802 metres (15,755 ft)
Discoverer	Dawn
Eponym	After the Candomblé god of agriculture

Oxo /ˈɒʃoʊ/ is a small impact crater on the dwarf planet Ceres. Located in Ceres's northern hemisphere, it is the second-brightest feature on Ceres, after Haulani Crater. The crater was named after the Candomblé (and Yoruba) god of agriculture.

Formation

Oxo is a very young crater, having been formed only 190+100
−70 Ka (thousand years) ago, and it is entirely located within the older, heavily degraded crater Duginavi. Despite its relatively small size, the impact that created Oxo penetrated more deeply into Ceres than many larger craters, reaching a depth of 4,802 metres, and it excavated significant amounts of bright material that was distributed unevenly throughout the crater's ejecta blanket.

Physical features

As a result of Oxo's young age it has a very sharp crater rim and a well-defined ejecta blanket. It is also home to many large boulders; boulders produced by older craters have largely been destroyed by micrometeoroid impacts.

Oxo is actively undergoing the sublimation of water ice, due to its young age. This ice is located along the crater's southern wall.

See also

• List of geological features on Ceres

References

Citations

1. "Planetary Names: Crater, craters: Oxo on Ceres". planetarynames.wr.usgs.gov. Retrieved 15 September 2021.
2. "Planetary Names: Crater, craters: Oxo on Ceres". Gazetteer of Planetary Nomenclature. 21 September 2015.
3. ^ Nathues et al. 2017, p. 1
4. Nathues et al. 2017, p. 9
5. Nathues et al. 2017, pp. 3–4
6. Nathues et al. 2017, p. 3
7. Formisano et al. 2018, p. 2

Bibliography

• Formisano, Michelangelo; Federico, Constanzo; Magni, Giacomo; Raponi, Andrea; et al. (10 December 2018). "Surface Temperatures and Water Ice Sublimation Rate of Oxo Crater: A Comparison With Juling Crater". Journal of Geophysical Research: Planets. 124 (1). American Geophysical Union: 2–13. doi:10.1029/2018JE005839. S2CID 133821860.
• Nathues, Andreas; Platz, Thomas; Hoffmann, Susanne M.; Thangjam, Guneshwar; et al. (4 August 2017). "Oxo Crater on (1) Ceres: Geological History and the Role of Water-ice". The Astronomical Journal. 154 (3). IOP Publishing: 84. doi:10.3847/1538-3881/aa7a04. hdl:10150/625818. S2CID 55137098.

[REDACTED] Media related to Oxo (crater) at Wikimedia Commons

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