File:Voyager_2_Neptune_and_Triton_-_Signpost_crop.jpg
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Voyager_2_Neptune_and_Triton_-_Signpost_crop.jpg (800 × 508像素,文件大小:68 KB,MIME类型:image/jpeg)
摘要
English: Neptune and Triton three days after Voyager's flyby. Triton is smaller crescent and is closer to viewer.
Português: Neptuno e Tritão três dias depois do sobrevoo da Voyager 2.
Deutsch: Neptun und Triton drei Tage nach Voyager's flyby.
描述Voyager 2 Neptune and Triton - Signpost crop.jpg | This dramatic view of the crescents of Neptune and Triton was acquired by Voyager 2 approximately 3 days, 6 and one-half hours after its closest approach to Neptune (north is to the right). The spacecraft is now plunging southward at an angle of 48 degrees to the plane of the ecliptic. This direction, combined with the current season of southern summer in the Neptune system, gives this picture its unique geometry. The spacecraft was at a distance of 4.86 million kilometers (3 million miles) from Neptune when these images were shuttered so the smallest detail discernible is approximately 90 kilometers (56 miles). Color was produced using images taken through the narrow-angle camera's clear, orange and green filters. Neptune does not appear as blue from this viewpoint because the forward scattering nature of its atmosphere is more important than its absorption of red light at this high phase angle (134 degrees). The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications. |
日期 | |
来源 | http://photojournal.jpl.nasa.gov/catalog/PIA02215 |
作者 | NASA / Jet Propulsion Lab |
其他版本 | File:Voyager 2 Neptune and Triton.jpg - Original image |
许可协议
Public domainPublic domainfalsefalse |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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28 8 1989
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当前 | 2014年7月29日 (二) 22:12 | ![]() | 800 × 508(68 KB) | Adam Cuerden | Upload |
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