The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Hale_telescope" id="mw7A" rel="mw:WikiLink" title="Hale telescope">Hale telescope</a> at <a href="https://en.wikipedia.org/wiki/Palomar_Observatory" id="mw7Q" rel="mw:WikiLink" title="Palomar Observatory">Palomar Observatory</a> sees <a href="https://en.wikipedia.org/wiki/First_light_(astronomy)" id="mw7g" rel="mw:WikiLink" title="First light (astronomy)">first light</a> under the direction of <a href="https://en.wikipedia.org/wiki/Edwin_Hubble" id="mw7w" rel="mw:WikiLink" title="Edwin Hubble">Edwin Hubble</a>, becoming the largest aperture optical telescope (until <a href="https://en.wikipedia.org/wiki/BTA-6" id="mw8A" rel="mw:WikiLink" title="BTA-6">BTA-6</a> is built in 1976).<sup about="#mwt167" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-30"}}' id="cite_ref-30" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_26#cite_note-30" id="mw8Q" style="counter-reset: mw-Ref 30;"><span class="mw-reflink-text" id="mw8g">[30]</span></a></sup><sup about="#mwt171" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-31"}}' id="cite_ref-31" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_26#cite_note-31" id="mw8w" style="counter-reset: mw-Ref 31;"><span class="mw-reflink-text" id="mw9A">[31]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-30"><cite about="#mwt164" class="citation web cs1" id="mwCM4"><a class="external text" href="http://www.astro.caltech.edu/palomar/about/telescopes/hale.html" id="mwCM8" rel="mw:ExtLink nofollow">"The 200-inch Hale Telescope"</a>. <i id="mwCNA">www.astro.caltech.edu</i>. <a class="external text" href="https://web.archive.org/web/20190420110149/http://www.astro.caltech.edu/palomar/about/telescopes/hale.html" id="mwCNE" rel="mw:ExtLink nofollow">Archived</a> from the original on 2019-04-20<span class="reference-accessdate" id="mwCNI">. Retrieved <span class="nowrap" id="mwCNM">2021-08-31</span></span>.</cite><span about="#mwt164" class="Z3988" id="mwCNQ" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=www.astro.caltech.edu&amp;rft.atitle=The+200-inch+Hale+Telescope&amp;rft_id=http%3A%2F%2Fwww.astro.caltech.edu%2Fpalomar%2Fabout%2Ftelescopes%2Fhale.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+26"></span></span>