File:Leda2(moon).jpg

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).

http://www.seasky.org/solarsystem/sky3f6.html#Leda
http://www.solarviews.com/cap/jup/leda.htm

September 1974

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.

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. Lua error in package.lua at line 80: module 'strict' not found.

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