উপবৃত্তাকার কক্ষপথের ধারণা
based on raster version by <a href="//commons.wikimedia.org/w/index.php?title=User:LouScheffer&amp;action=edit&amp;redlink=1" class="new" title="User:LouScheffer (page does not exist)">user:LouScheffer</a>
2019-03-05
File:Apophis ellipse.svg