frame : astronomical  vixen GP motor equator polar
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/77035235@N04">sebastien lebrigand</a> from crépy en valois, FRANCE
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/sebastro/11772668373/">refractor 102/660</a>