Bild:Enceladus polar temps.jpg - Alemannische Wikipedia

# Bild:Enceladus polar temps.jpg

### Us der alemannische Wikipedia, der freie Dialäkt-Enzyklopedy

- Bild
- Dateiversionen
- Bildverweise

Größe der Voransicht: 604 × 599 Pixel
Version in höherer Auflösung‎ (973 × 965 Pixel, Dateigröße: 400 KB, MIME-Typ: image/jpeg)

| Des Medium wird direkt vo Wikimedia Commons us ybunde. Aagabe zur Quelle un d'Lizenz cha mer dört uf dr Bildbeschrybigssyte finde.

Es folgt der Inhalt der Datei-Beschreibungsseite.

Description

English: High-resolution, en:false-color view of "tiger stripe" fractures in the south polar region of Saturn's moon Enceladus with en:brightness temperatures from the CIRS instrument overlain.

Original caption released with image:

This image shows the warmest places in the south polar region of Saturn's moon Enceladus. The unexpected temperatures were discovered by Cassini's composite en:infrared en:spectrometer during a close flyby on en:July 14, en:2005. The image shows how these temperatures correspond to the prominent, bluish fractures dubbed "tiger stripes," first imaged by Cassini's imaging science subsystem cameras. Working together the two teams were able to pinpoint the exact location of the warmest regions on Enceladus.

The composite infrared spectrometer instrument measured the infrared heat radiation from the surface at wavelengths between 9 and 16.5 en:micrometres within each of the 10 squares shown here. Each square is 6 en:kilometers (4 miles) across. The color of each square, and the number shown above it, describe the composite infrared spectrometer's measurement of the approximate average temperature of the surface within that square.

The warmest temperature squares, at 91 and 89 degrees en:Kelvin (-299 and -296 °F), are located over one of the "tiger stripe" fractures. They contrast sharply with the surrounding temperatures, which are in the range 74 to 81 degrees Kelvin (-326 to -313 °F). The detailed composite infrared spectrometer data suggest that small areas near the fracture are at substantially higher temperatures, well over 100 degrees Kelvin (-279 °F). Such "warm" temperatures are unlikely to be due to heating of the surface by the feeble sunlight striking Enceladus' south pole. They are a strong indication that internal heat is leaking out of Enceladus and warming the surface along these fractures. Evaporation of this relatively warm ice probably generates the cloud of en:water vapor detected above Enceladus' south pole by several other Cassini instruments. Scientists are unsure how the internal heat reaches the surface. The process might involve liquid water, slushy brine, or soft but solid ice.

The imaging science subsystem image is an enhanced color view with a pixel scale of 122 en:meters (400 ft) that was acquired at the same time as the composite infrared spectrometer data. It covers a region 125 kilometers (75 miles) across. The spacecraft's distance from Enceladus was 21,000 kilometers (13,000 miles). The broad bluer fractures that can be seen running from the upper left to the lower right of the image are 1 to 2 kilometers (0.6 to 1.2 miles) wide and more than 100 kilometers (60 miles) long. The fractures are thought to be bluer than the surrounding surface because coarser-grained ice (which has a blue color just as thick masses of ice, like glaciers and icebergs, do on Earth) has been exposed in the fractures. The color image was constructed using an ultraviolet filter (centered at 338 nanometers) in the blue channel, a clear filter in the green channel, and an infrared filter (centered at 930 nanometers) in the red channel.

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 Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission, visit http://saturn.jpl.nasa.gov and the Cassini imaging team home page, http://ciclops.org.

Credit: NASA/JPL/GSFC/Space Science Institute

Source | Transfered from en.wikipedia
Date | 2005-12-02 (original upload date)
Author | Original uploader was Volcanopele at en.wikipedia
Permission (Reusing this image) | PD-USGOV; PD-USGOV-NASA.

## [edit] License information

This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).

Languages: Deutsch | English | Español | Français | Nederlands | Português | 简体中文 | 繁體中文 | ...

Warnings:

- Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
- The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not in the public domain.
- Materials from the Hubble Space Telescope may be copyrighted if they do not explicitly come from the STScI. [1]
- All materials created by the SOHO probe are copyrighted and require permission for commercial non-educational use. [2]
- Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3]

## [edit] Original upload log

The original description page is/was here. All following user names refer to en.wikipedia.

- 2005-12-02 22:58 Volcanopele 973×965×8 (409713 bytes) High-[[resolution]], [[false-color]] view of "tiger stripe" fractures in the south polar region of [[Saturn (planet)|Saturn]]'s moon [[Enceladus (moon)|Enceladus]] with [[brightness temperature]]s from the CIRS instrument overlain. '''Original caption re

## Dateiversionen

Klicke auf einen Zeitpunkt, um diese Version zu laden.

| Version vom | Benutzer | Maße | Dateigröße | Kommentar
aktuell | 14:33, 6. Dez. 2007 | File Upload Bot (Magnus Manske) | 973×965 | 400 KB | {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|High-resolution, en:false-color view of "tiger stripe" fractures in the south polar region of Saturn's moon [[:en:Enceladus (moon)|En

## Bildverweise

Di folgende Sytene händ en Link zu dem Bildli:

- Enceladus (Mond)

##### Views

- Bildli
- Diskussion
- Itzigi Version

##### Mitarbeit

- Wikipedia-Portal
- Artikel wo fähle
- Letschti Änderige

##### Hilf

- Froge?
- Stammtisch
- Finanzielli Hilf

##### Suech