File:Backlit Saturn from Cassini Orbiter 2007 May 9.jpg

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

原始文件(4,824 × 3,048像素,文件大小:2.41 MB,MIME类型:image/jpeg


摘要

描述
English: Saturn sits nested in its rings of ice as Cassini once again plunges toward the graceful giant.

This natural color mosaic was acquired by the Cassini spacecraft as it soared 39 degrees above the unilluminated side of the rings.

Little light makes its way through the rings to be scattered in Cassini's direction in this viewing geometry, making the rings appear somewhat dark compared to the reflective planet. The view can be contrasted with earlier mosaics designed to showcase the rings rather than the planet, which were therefore given longer exposure times (see PIA08362 and PIA08361).

Bright clouds play in the blue-gray skies of the north. The ring shadows continue to caress the planet as they slide farther south toward their momentary disappearance during equinox in 2009. The rings' reflected light illuminates the southern hemisphere on Saturn's night side.

The scene is reminiscent of the parting glance of NASA's Voyager 1 as it said goodbye to Saturn in 1981 (see PIA00335). Cassini, however, will continue to orbit Saturn for many years to come.

Three of Saturn's moons are visible in this image: Mimas (397 kilometers, or 247 miles across) at the 2 o'clock position, Janus (181 kilometers, or 113 miles across) at the 4 o'clock position and Pandora (84 kilometers, or 52 miles across) at the 8 o'clock position. Pandora is a faint speck just outside the narrow F ring.

This mosaic was constructed from wide-angle camera images taken just before the narrow-angle camera mosaic PIA08389.

The view combines 45 images -- 15 separate sets of red, green and blue images--taken over the course of about two hours, as Cassini scanned across the entire main ring system.

The images in this view were obtained on May 9, 2007, at a distance of approximately 1.1 million kilometers (700,000 miles) from Saturn. Image scale is about 62 kilometers (39 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.
日期
来源 http://photojournal.jpl.nasa.gov/catalog/PIA08388
作者 NASA/JPL/Space Science Institute
其他版本
TIFF Version

许可协议

本图像或视频收录于美国国家航空航天局 (NASA)某个部门,其照片编号是: PIA08388

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:
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:
註解
InfoField
該圖片含有註解:在維基媒體共享資源上查看註解

说明

添加一行文字以描述该文件所表现的内容

image/jpeg

48ce4079f661c5ce75b24ee3c4245122fb508ba0

2,531,877 字节

3,048 像素

4,824 像素

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2009年10月8日 (四) 08:252009年10月8日 (四) 08:25版本的缩略图4,824 × 3,048(2.41 MB)Raekyoriginal tiff converted to jpeg (quality 12) in Photoshop at original size.
2008年2月28日 (四) 23:062008年2月28日 (四) 23:06版本的缩略图4,000 × 2,527(4.83 MB)TomruenReduce resolution to 4000 wide - upload failed at 4800
2008年2月28日 (四) 23:032008年2月28日 (四) 23:03版本的缩略图4,824 × 3,048(7.26 MB)Tomruen{{NASA info |name=PIA08362 |target=Saturn |satellite of=Sun |mission=Cassini–Huygens |mission alt=Cassini |spacecraft=Cassini–Huygens |spacecraft alt=Cassini Orbiter |instrument=Imaging Science Subsystem - Wide Angle |size=4824 samples x 3048

全域文件用途

以下其他wiki使用此文件:

元数据