File:Russell Crater Dunes, Defrosted.jpg
預覽大小：800 × 600 像素。 其他解析度：320 × 240 像素 | 640 × 480 像素 | 1,024 × 768 像素 | 1,280 × 960 像素 | 2,560 × 1,920 像素。
原始檔案 （2,560 × 1,920 像素，檔案大小：7.5 MB，MIME 類型：image/jpeg）
摘要
| 描述 |
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. |
| 日期 | |
| 來源 | HiRISE |
| 作者 | 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 °.
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本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策） |  |
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| 日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
|---|---|---|---|---|---|
| 目前 | 2010年11月10日 (三) 16:58 | | 2,560 × 1,920（7.5 MB） | Originalwana | {{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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