跳转到内容

File:S2007 S 4 PIA08369.gif

页面内容不支持其他语言。
這個文件來自維基共享資源
维基百科,自由的百科全书

S2007_S_4_PIA08369.gif (700 × 450像素,文件大小:695 KB,MIME类型:image/gif、​循环、​9帧、​9.0秒)


摘要

描述 Animated GIF of discovery images of Saturnian moon S/2007 S 4
日期
来源

http://photojournal.jpl.nasa.gov/catalog/PIA08369

本图像或视频收录于美国国家航空航天局 (NASA)喷气推进实验室(Jet Propulsion Laboratory),其照片编号是: PIA08369

此标签不表示文件的著作权状态。任何文件在附有此标签的同時还需要一个有效的著作权标签请参阅许可协议说明页面以了解更多信息。
其他语言:
作者 NASA/JPL/Space Science Institute
其他版本 still image

Original Caption Released with Image:

The 60th moon of Saturn reveals itself in a sequence of images. The discovery suggests that the new moon, along with its neighbors Methone and Pallene (discovered by the Cassini imaging team in 2004), may form part of a larger group of moons in this region. The movie spans six hours.

Initial calculations show the moon to have a width of approximately 2 kilometers (1.2 miles), with an orbit that lies between those of the moons Methone and Pallene. The moon's orbit is in resonance with another moon, Mimas, also seen in this sequence as a very bright, moving object. The new moon's location is indicated by a red box.

The (narrow) ring visible in the images is the G ring, and the G ring arc passes through the field of view during the course of the movie. Calypso, a Trojan moon of Tethys, is also visible in the sequence. Trojan moons are found near gravitationally stable points ahead or behind a larger moon.

This view looks toward the non-illuminated side of the rings from about 3 degrees above the ringplane.

The series of images was taken in visible light with the Cassini spacecraft wide-angle camera on May 30, 2007, at a distance of approximately 1.76 million kilometers (1.09 million miles) from Saturn. Image scale is about 105 kilometers (65 miles) per pixel. The ghostly shape that stretches across the scene results from scattered light within the camera optics.

许可协议

Public domain 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/zhNASA版权方针页面JPL图片使用方针。)
警告:

说明

添加一行文字以描述该文件所表现的内容

此文件中描述的项目

描繪內容

文件历史

点击某个日期/时间查看对应时刻的文件。

日期/时间缩⁠略⁠图大小用户备注
当前2008年2月26日 (二) 08:352008年2月26日 (二) 08:35版本的缩略图700 × 450(695 KB)Kwamikagami{{Information |Description=Animated GIF of discovery images of Saturnian moon S/2007 S 4 |Source=NASA |Date=2007 May 30 |Author=NASA/JPL/Space Science Institute |Permission=public domain }} Original Caption Released with Image: The 60th moon of Saturn

以下2个页面使用本文件:

全域文件用途

以下其他wiki使用此文件:

查看此文件的更多全域用途