File:Pluto discovery plates.png

Summary
Original plates from Clyde Tombaugh's discovery of Pluto. (Apparent magnitude +15.1)

Credit: Lowell Observatory Archives, from.

Also visible in this image:
 * Wikisky image of this star field centered on coordinates 07 23 06.55 +21 49 38.5
 * HD 57673 (brightest star in this FOV at apparent magnitude 8.7 located above Pluto in Jan 23 photo)
 * Galaxy NGC 2365

Fair use on Pluto
This image qualifies for fair use in the articles Pluto because:
 * 1) It is an image of unquestionable historic value
 * 2) Illustrating the discovery of the subject in question
 * 3) There is no freely available alternative to this unique image (Pluto cannot be discovered again)

Fair use in Planets beyond Neptune

 * 1) It is an image of unquestionable historic value
 * 2) Illustrating the discovery of the subject in question
 * 3) There is no freely available alternative to this unique image (Pluto cannot be discovered again)
 * 4) Planets beyond Neptune is the main article concerning the Planets beyond Neptune