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Archivo:Russell Crater Dunes, Defrosted.jpg

De Wikipedia, la enciclopedia libre

Ver la imagen en su resolución original(2560 × 1920 píxeles; tamaño de archivo: 7,5 MB; tipo MIME: image/jpeg)

Resumen

Descripción
English: The Russell Crater dune field is covered seasonally by carbon dioxide frost, and this image shows the dune field after the frost has sublimated (evaporated directly from solid to gas). There are just a few patches left of the bright seasonal frost. Numerous dark dust devil tracks can be seen meandering across the dunes. The face of the largest dune is lined with gullies. The source of the gullies is unclear but could involve erosion by the seasonal carbon dioxide ice.
Fecha
Fuente HiRISE
Autor NASA/JPL/University of Arizona

Local Mars time: 3:20 PM. Latitude (centered): -54.3 °. Longitude (East): 12.9 °. Range to target site: 253.0 km. Original image scale range: 25.3 cm/pixel (with 1 x 1 binning) so objects ~76 cm across are resolved. Map projected scale: 25 cm/pixel and north is up. Map projection: EQUIRECTANGULAR. Emission angle: 6.1 °. Phase angle: 53.4 °. Solar incidence angle: 48 °, with the Sun about 42 ° above the horizon. Solar longitude: 252.7 °, Northern Autumn. For non-map projected products: North azimuth: 96 °. Sub-solar azimuth: 23.7 °.

Licencia

Public domain Este archivo es de dominio público porque fue creado por la NASA. Las políticas sobre copyright de la NASA estipulan que «el material de la NASA no está protegido con copyright a menos que se indique lo contrario». (Políticas sobre copyright de la NASA o Políticas sobre la utilización de imágenes del Jet Propulsion Laboratory).
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actual16:58 10 nov 2010Miniatura de la versión del 16:58 10 nov 20102560 × 1920 (7,5 MB)<bdi>Originalwana</bdi>{{Information |Description={{en|1=The Russell Crater dune field is covered seasonally by carbon dioxide frost, and this image shows the dune field after the frost has sublimated (evaporated directly from solid to gas). There are just a few pat

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