Image: Leda2(moon)

Description: Leda is a prograde irregular satellite of Jupiter. It has an apparent magnitude of 19.5. This is the 1974 discovery image of Leda (Jupiter XII) as photographed by Charles Kowal with the Palomar Observatory's 48-inch Schmidt Telescope (now called the Samuel Oschin Telescope).
Title: Leda2(moon)
Credit: http://www.seasky.org/solarsystem/sky3f6.html#Leda http://www.solarviews.com/cap/jup/leda.htm
Author: This image is not a Voyager 1 or Voyager 2 image since they were not launched until 1977 and the Voyagers were prone to tracking errors blurring long exposures.
Permission: Granted permission for use on Wikipedia by Public Affairs at Palomar Observatory on 2009-08-11 in a private communication with wiki-user Kevin Heider. This image is a faithful digitisation of a unique historic image, and the copyright for it is most likely held by the person who created the image or the agency employing the person. It is believed that the use of this image may qualify as fair use under the Copyright law of the United States. Other use of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content for more information. Please remember that the non-free content criteria require that non-free images on Wikipedia must not "[be] used in a manner that is likely to replace the original market role of the original copyrighted media." Use of historic images from press agencies must only be of a transformative nature, when the image itself is the subject of commentary rather than the event it depicts (which is the original market role, and is not allowed per policy). To the uploader: Please add a detailed fair use rationale for each article the image is used in, which must also declare compliance with the other parts of the non-free content criteria, as well as the source of the work and copyright information. For example fair use rationales, see here. Template:Non-free use rationale 2 may be helpful for stating the rationale. To patrollers and administrators: If this image has an appropriate rationale please append |image has rationale=yes as a parameter to the license template. If this tag does not accurately describe this image, please replace it with an appropriate one. Fair use true Fair use This image qualifies for fair use in the articles Leda (moon) and Moons of Jupiter because: 1) Illustrates the discovery of the subject in question 2) No freely available alternative to this unique image (Leda cannot be discovered again) 3) It demonstrates how a telescope can track a satellite of Jupiter and blur background stars
License: Fair use