collection of different instruments to tell various astronomic events based on sun information<br>P5264944
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/19824957@N00">Wolfgang Manousek</a> from Dormagen, Germany
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/19824957@N00/16728787">Flickr</a>