Signature of <a href="https://en.wikipedia.org/wiki/Cecilia_Payne-Gaposchkin" class="extiw" title="w:Cecilia Payne-Gaposchkin">Cecilia Payne-Gaposchkin</a>
Cecilia Payne-Gaposchkin
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:Cecilia_Payne-Gaposchkin02b.jpg" title="File:Cecilia Payne-Gaposchkin02b.jpg">Cecilia Payne-Gaposchkin02b.jpg</a><br>