File:The dark dunes of Moreux crater ESA21867855.jpeg
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摘要
描述The dark dunes of Moreux crater ESA21867855.jpeg |
English: Known for its wide swathes of rippling, textured, gently sloping dunes, Mars’ Terra Sabaea region is home to many fascinating geological features – including the prominent Moreux crater, the star of a new image from ESA’s Mars Express. The crater is roughly three kilometres deep, and spans 135 kilometres from edge to edge. While the surrounding material is visible in hues of butterscotch and caramel, the crater’s walls are dark, resembling a smudged ring of charcoal, and dark brown-black dunes cover the crater floor. This darkness is thought to be a result of the dunes comprising sandy material rich in pyroxene and olivine, minerals with a typically dark appearance. The dunes and flow features in Moreux crater are intriguing. Many of the features surrounding the central peak and southern region of the crater (to the left of the image) appear to have been formed by substantial and episodic glacial activity over the past few million years. Many other features, most notably the sickle-shaped dunes covering the crater floor, show signs of being eroded or formed by wind-related processes. This image comprises data gathered on 30 October 2019 during orbit 20014. The ground resolution is approximately 16 m/pixel and the images are centred at about 44°E/42°N. This image was created using data from the nadir and colour channels of the High Resolution Stereo Camera (HRSC). The nadir channel is aligned perpendicular to the surface of Mars, as if looking straight down at the surface. North is to the right. |
日期 | 2020年3月5日 (上傳日期) |
來源 | The dark dunes of Moreux crater |
作者 | ESA/DLR/FU Berlin |
其他版本 |
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Activity InfoField | Space Science |
Mission InfoField | Mars Express |
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日期/時間 | 縮圖 | 尺寸 | 使用者 | 備註 | |
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目前 | 2020年6月7日 (日) 11:32 | ![]() | 9,711 × 3,600(14.32 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/03/the_dark_dunes_of_moreux_crater/21867844-1-eng-GB/The_dark_dunes_of_Moreux_crater.jpg via Commons:Spacemedia |
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此檔案中包含其他資訊,這些資訊可能是由數位相機或掃描器在建立或數位化過程中所新增的。若檔案自原始狀態已被修改,一些詳細資料可能無法完整反映出已修改的檔案。
作者 | Björn Schreiner 2020 @ FU Berlin |
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像素合成 | RGB |
方位 | 標準 |
水平解析度 | 72 dpi |
垂直解析度 | 72 dpi |
使用軟體 | Adobe Photoshop CS6 (Windows) |
檔案修改日期時間 | 2020年2月19日 (三) 17:54 |
數位化的日期時間 | 2020年2月6日 (四) 17:34 |
色彩空間 | sRGB |
原始文件唯一識別碼 | xmp.did:4FC666FAFA48EA11A5B6F018C7A06361 |
詮釋資料最後修改日期 | 2020年2月19日 (三) 18:54 |
IIM 版本 | 2 |