File:Mercury Double-Ring Impact Basin.png

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English: This image shows Caravaggio, a double-ring impact basin (approximately 160 kilometers in diameter), with another large impact crater on its south-south-western side. Smaller, more recent impacts formed comparatively fresh craters across the entire surface visible in this image. The floor within the inner or peak ring appears to be smoother than the floor between the peak ring and the outer rim, possibly the result of lava flows that partially flooded the basin some time after impact. Double-ring basins are formed when a large meteoroid strikes the surface of a rocky planet.
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS). ID: EN0162744214M. Acquired: Third flyby on 2009-09-29. Resolution: 400 meters/pixel. Scale: The double-ring basin is approximately 160 kilometres in diameter. Spacecraft Altitude: 15,400 kilometres.
日期
來源 MESSENGER
作者 NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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Public domain 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/zhNASA版權政策JPL圖像使用政策
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目前2009年10月7日 (三) 09:04於 2009年10月7日 (三) 09:04 版本的縮圖1,018 × 1,024(771 KB)Originalwana{{Information |Description={{en|1=This image shows a double-ring impact basin, with another large impact crater on its south-south-western side. Smaller, more recent impacts formed comparatively fresh craters across the entire surface visible in this imag

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