The news of the discovery of <a href="https://en.wikipedia.org/wiki/Pluto" id="mwmg" rel="mw:WikiLink" title="Pluto">Pluto</a> is announced by <a href="https://en.wikipedia.org/wiki/Lowell_Observatory" id="mwmw" rel="mw:WikiLink" title="Lowell Observatory">Lowell Observatory</a>.<sup about="#mwt97" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-18"}}' id="cite_ref-18" rel="dc:references" typeof="mw:Extension/ref"><a href="./March_13#cite_note-18" id="mwnA" style="counter-reset: mw-Ref 18;"><span class="mw-reflink-text" id="mwnQ">[18]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-18"><cite about="#mwt94" class="citation journal cs1" id="CITEREFHoyt1976">Hoyt, William Graves (December 1976). "W. H. Pickering's Planetary Predictions and the Discovery of Pluto". <i id="mwB7M">Isis</i>. <b id="mwB7Q">67</b> (4): 551–564. <a class="mw-redirect" href="./Doi_(identifier)" id="mwB7U" rel="mw:WikiLink" title="Doi (identifier)">doi</a>:<a class="external text" href="https://doi.org/10.1086%2F351668" id="mwB7Y" rel="mw:ExtLink nofollow">10.1086/351668</a>. <a class="mw-redirect" href="./PMID_(identifier)" id="mwB7c" rel="mw:WikiLink" title="PMID (identifier)">PMID</a><span id="mwB7g" typeof="mw:Entity"> </span><a class="external text" href="https://pubmed.ncbi.nlm.nih.gov/794024" id="mwB7k" rel="mw:ExtLink nofollow">794024</a>. <a class="mw-redirect" href="./S2CID_(identifier)" id="mwB7o" rel="mw:WikiLink" title="S2CID (identifier)">S2CID</a><span id="mwB7s" typeof="mw:Entity"> </span><a class="external text" href="https://api.semanticscholar.org/CorpusID:26512655" id="mwB7w" rel="mw:ExtLink nofollow">26512655</a>.</cite><span about="#mwt94" class="Z3988" id="mwB70" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Isis&amp;rft.atitle=W.+H.+Pickering%27s+Planetary+Predictions+and+the+Discovery+of+Pluto&amp;rft.volume=67&amp;rft.issue=4&amp;rft.pages=551-564&amp;rft.date=1976-12&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A26512655%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F794024&amp;rft_id=info%3Adoi%2F10.1086%2F351668&amp;rft.aulast=Hoyt&amp;rft.aufirst=William+Graves&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMarch+13"></span></span>