Cygnus, the wide field magic line

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<blockquote class="wp-embedded-content" data-secret="P29XltQiZG"><a href="https://astrocat.info/cygnus-the-wide-field-magic-line/">Cygnus, the wide field magic line</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://astrocat.info/cygnus-the-wide-field-magic-line/embed/#?secret=P29XltQiZG" width="600" height="400" title="&#8220;Cygnus, the wide field magic line&#8221; &#8212; Astrocat" data-secret="P29XltQiZG" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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