Star trails due to the Earth rotation. 134 frames (each of 30 sec exposition) shot from 2014-01-05 02:59:55 to 2014-01-05 04:12:56 and stacked. Equipment: camera Canon EOS 450D, lens EF 50mm f/1.8, tripod. f4, ISO 800. Point of observation: Special astrophysical observatort of Russian academy of sciences, Nizhniy Arkhyz, 43.650124N 41.431074E.
<a href="//commons.wikimedia.org/w/index.php?title=User:Igor_da_Bari&amp;action=edit&amp;redlink=1" class="new" title="User:Igor da Bari (page does not exist)">Igor da Bari</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>