Image:PIA06237.jpg

From Wikipedia, the free encyclopedia

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

[edit] Summary

Description

Cassini's confirmation that a small moon orbits within the Keeler gap in Saturn's rings is made all the more exciting by this image, in which the disk of the 7 kilometer-wide body (4-miles) is resolved for the first time.

The new body, Daphnis(S/2005 S1), was first seen in a time-lapse sequence of images taken on May 1, 2005, as Cassini began its climb to higher elevations in orbit around Saturn (see PIA06238 for the movie). This view was acquired one day after the discovery sequence of images and has allowed scientists to measure the moon's size and brightness.

The Keeler gap edges also bear similarities to the scalloped edges of the 322-kilometer-wide (200-mile) Encke gap, where Pan resides. From the size of the waves seen in the Encke gap, imaging scientists were able to estimate the mass of Pan. They expect to do the same eventually with this new moon.

This image was obtained with the Cassini spacecraft narrow-angle camera on May 2, 2005, at a distance of about 594,000 kilometers (369,000 miles) from Saturn. Cassini was about 525,000 kilometers (326,000 miles) above the ringplane when the image was taken. Resolution in the original image was 3 kilometers (2 miles) per pixel. The image has been magnified by a factor of two, and contrast has been enhanced, to aid visibility of the small moonlet.

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 team is based at the Space Science Institute, Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov. For additional images visit the Cassini imaging team homepage http://ciclops.org.

Español: Imagen del satélite S/2005 S 1 obtenida por la sonda Cassini mostrando las ondas inducida en los bordes de la división Keeler.
Nederlands: Foto van Daphnis genomen door Cassini waarin de golven in de rand van de keelerscheiding zichtbaar zijn.
Source

http://photojournal.jpl.nasa.gov/catalog/PIA06237
Date

2005-05-02
Author

NASA/JPL/Space Science Institute
Permission
(Reusing this image)
Public domain
 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).

Deutsch | English | Español | Français | Nederlands | Português | Русский | ‪中文(简体)‬ | ‪中文(繁體)‬ | +/-
Warning sign
 Warnings:
Other versions [4]

This image or video was catalogued by Jet Propulsion Lab of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA06237.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current23:36, 10 May 2005744×328 (20 KB)Bryan Derksen ({{PD-USGov-NASA}} Original Caption Released with Image: Cassini's confirmation that a small moon orbits within the Keeler gap in Saturn's rings is made all the more exciting by this image, in which the disk of the 7 kilometer-wide body (4-miles) is reso)