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File:Proteus Voyager 2 (big).jpg

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描述

This image of Neptune's satellite 1989N1 was obtained on Aug. 25, 1989 from a range of 146,000 kilometers (91,000 miles) by Voyager 2. The resolution is about 2.7 kilometers (1.7 miles) per line pair. The satellite, seen here about half-illuminated, has an average radius of some 200 kilometers (120 miles). It is dark (albedo 6 percent) and spectrally grey. Hints of crater-like forms and groove-like lineations can be discerned. The apparent graininess of the image is caused by the short exposure necessary to avoid significant smear. The Voyager Mission is conducted by JPL for NASA's Office of Space

Science and Applications.
日期
來源 http://nssdc.gsfc.nasa.gov/image/planetary/neptune/1989n1.jpg
作者 NASA/JPL
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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成立日

25 8 1989

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現時2015年5月5號 (二) 10:23響2015年5月5號 (二) 10:23嘅縮圖版本727 × 726（91 KB）Jcpag2012auto adjustment using Adobe Photoshop (CS5)
2007年5月4號 (五) 07:04響2007年5月4號 (五) 07:04嘅縮圖版本727 × 726（31 KB）Spiritia{{Information |Description= Image of the first of six new moons discovered by Voyager 2 at Neptune: Proteus. |Source= http://nssdc.gsfc.nasa.gov/image/planetary/neptune/1989n1.jpg |Date= |Author= |Permission={{PD NASA}} }} Category:Proteus (moon)

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