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</div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Giuseppe Piazzi</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ga naar een artikel in een andere taal. Beschikbaar in 71 talen" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-71" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">71 talen</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%8A%D8%A8%D9%87_%D8%A8%D9%8A%D8%A7%D8%B2%D9%8A" title="جوزيبه بيازي – Arabisch" lang="ar" hreflang="ar" data-title="جوزيبه بيازي" data-language-autonym="العربية" data-language-local-name="Arabisch" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Asturisch" lang="ast" hreflang="ast" data-title="Giuseppe Piazzi" data-language-autonym="Asturianu" data-language-local-name="Asturisch" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%BE%D9%87_%D9%BE%DB%8C%D8%A7%D8%AA%D8%B3%DB%8C" title="جوزپه پیاتسی – South Azerbaijani" lang="azb" hreflang="azb" data-title="جوزپه پیاتسی" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%94%D0%B6%D1%83%D0%B7%D1%8D%D0%BF%D1%8D_%D0%9F%E2%80%99%D1%8F%D1%86%D1%8B" title="Джузэпэ П’яцы – Belarussisch" lang="be" hreflang="be" data-title="Джузэпэ П’яцы" data-language-autonym="Беларуская" data-language-local-name="Belarussisch" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%94%D0%B6%D1%83%D0%B7%D0%B5%D0%BF%D0%B5_%D0%9F%D0%B8%D0%B0%D1%86%D0%B8" title="Джузепе Пиаци – Bulgaars" lang="bg" hreflang="bg" data-title="Джузепе Пиаци" data-language-autonym="Български" data-language-local-name="Bulgaars" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%9C%E0%A5%8D%E0%A4%AF%E0%A5%81%E0%A4%B8%E0%A5%87%E0%A4%AA%E0%A5%8D%E0%A4%AA%E0%A5%80_%E0%A4%AA%E0%A4%BF%E0%A4%AF%E0%A4%BE%E0%A4%9C%E0%A5%8D%E0%A4%9C%E0%A5%80" title="ज्युसेप्पी पियाज्जी – Bhojpuri" lang="bh" hreflang="bh" data-title="ज्युसेप्पी पियाज्जी" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Catalaans" lang="ca" hreflang="ca" data-title="Giuseppe Piazzi" data-language-autonym="Català" data-language-local-name="Catalaans" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Tsjechisch" lang="cs" hreflang="cs" data-title="Giuseppe Piazzi" data-language-autonym="Čeština" data-language-local-name="Tsjechisch" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Duits" lang="de" hreflang="de" data-title="Giuseppe Piazzi" data-language-autonym="Deutsch" data-language-local-name="Duits" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Zazaki" lang="diq" hreflang="diq" data-title="Giuseppe Piazzi" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CE%B6%CE%BF%CF%85%CE%B6%CE%AD%CF%80%CE%B5_%CE%A0%CE%B9%CE%AC%CF%84%CF%83%CE%B9" title="Τζουζέπε Πιάτσι – Grieks" lang="el" hreflang="el" data-title="Τζουζέπε Πιάτσι" data-language-autonym="Ελληνικά" data-language-local-name="Grieks" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Engels" lang="en" hreflang="en" data-title="Giuseppe Piazzi" data-language-autonym="English" data-language-local-name="Engels" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Esperanto" lang="eo" hreflang="eo" data-title="Giuseppe Piazzi" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Spaans" lang="es" hreflang="es" data-title="Giuseppe Piazzi" data-language-autonym="Español" data-language-local-name="Spaans" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Estisch" lang="et" hreflang="et" data-title="Giuseppe Piazzi" data-language-autonym="Eesti" data-language-local-name="Estisch" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Baskisch" lang="eu" hreflang="eu" data-title="Giuseppe Piazzi" data-language-autonym="Euskara" data-language-local-name="Baskisch" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%BE%D9%87_%D9%BE%DB%8C%D8%A7%D8%AA%D8%B3%DB%8C" title="جوزپه پیاتسی – Perzisch" lang="fa" hreflang="fa" data-title="جوزپه پیاتسی" data-language-autonym="فارسی" data-language-local-name="Perzisch" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Fins" lang="fi" hreflang="fi" data-title="Giuseppe Piazzi" data-language-autonym="Suomi" data-language-local-name="Fins" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Piazzi_Giuseppe" title="Piazzi Giuseppe – Võro" lang="vro" hreflang="vro" data-title="Piazzi Giuseppe" data-language-autonym="Võro" data-language-local-name="Võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Frans" lang="fr" hreflang="fr" data-title="Giuseppe Piazzi" data-language-autonym="Français" data-language-local-name="Frans" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Galicisch" lang="gl" hreflang="gl" data-title="Giuseppe Piazzi" data-language-autonym="Galego" data-language-local-name="Galicisch" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Manx" lang="gv" hreflang="gv" data-title="Giuseppe Piazzi" data-language-autonym="Gaelg" data-language-local-name="Manx" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%92%27%D7%95%D7%96%D7%A4%D7%94_%D7%A4%D7%99%D7%90%D7%A6%D7%99" title="ג'וזפה פיאצי – Hebreeuws" lang="he" hreflang="he" data-title="ג'וזפה פיאצי" data-language-autonym="עברית" data-language-local-name="Hebreeuws" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Kroatisch" lang="hr" hreflang="hr" data-title="Giuseppe Piazzi" data-language-autonym="Hrvatski" data-language-local-name="Kroatisch" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Hongaars" lang="hu" hreflang="hu" data-title="Giuseppe Piazzi" data-language-autonym="Magyar" data-language-local-name="Hongaars" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8B%D5%B8%D6%82%D5%A6%D5%A5%D5%BA%D5%BA%D5%A5_%D5%8A%D5%B5%D5%A1%D6%81%D6%81%D5%AB" title="Ջուզեպպե Պյացցի – Armeens" lang="hy" hreflang="hy" data-title="Ջուզեպպե Պյացցի" data-language-autonym="Հայերեն" data-language-local-name="Armeens" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Interlingua" lang="ia" hreflang="ia" data-title="Giuseppe Piazzi" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Indonesisch" lang="id" hreflang="id" data-title="Giuseppe Piazzi" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesisch" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Ido" lang="io" hreflang="io" data-title="Giuseppe Piazzi" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Italiaans" lang="it" hreflang="it" data-title="Giuseppe Piazzi" data-language-autonym="Italiano" data-language-local-name="Italiaans" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A5%E3%82%BC%E3%83%83%E3%83%9A%E3%83%BB%E3%83%94%E3%82%A2%E3%83%83%E3%83%84%E3%82%A3" title="ジュゼッペ・ピアッツィ – Japans" lang="ja" hreflang="ja" data-title="ジュゼッペ・ピアッツィ" data-language-autonym="日本語" data-language-local-name="Japans" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%94%D0%B6%D1%83%D0%B7%D0%B5%D0%BF%D0%BF%D0%B5_%D0%9F%D1%8C%D1%8F%D1%86%D1%86%D0%B8" title="Джузеппе Пьяцци – Kazachs" lang="kk" hreflang="kk" data-title="Джузеппе Пьяцци" data-language-autonym="Қазақша" data-language-local-name="Kazachs" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A3%BC%EC%84%B8%ED%8E%98_%ED%94%BC%EC%95%84%EC%B9%98" title="주세페 피아치 – Koreaans" lang="ko" hreflang="ko" data-title="주세페 피아치" data-language-autonym="한국어" data-language-local-name="Koreaans" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Iosephus_Piazzi" title="Iosephus Piazzi – Latijn" lang="la" hreflang="la" data-title="Iosephus Piazzi" data-language-autonym="Latina" data-language-local-name="Latijn" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Luxemburgs" lang="lb" hreflang="lb" data-title="Giuseppe Piazzi" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxemburgs" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/D%C5%BEuzepe_Pjaci" title="Džuzepe Pjaci – Lets" lang="lv" hreflang="lv" data-title="Džuzepe Pjaci" data-language-autonym="Latviešu" data-language-local-name="Lets" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%8F%D1%83%D0%B7%D0%B5%D0%BF%D0%B5_%D0%9F%D1%98%D0%B0%D1%86%D0%B8" title="Џузепе Пјаци – Macedonisch" lang="mk" hreflang="mk" data-title="Џузепе Пјаци" data-language-autonym="Македонски" data-language-local-name="Macedonisch" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%9C%E0%A5%8D%E0%A4%AF%E0%A5%81%E0%A4%B8%E0%A5%87%E0%A4%AA%E0%A5%8D%E0%A4%AA%E0%A5%87_%E0%A4%AA%E0%A4%BF%E0%A4%AF%E0%A4%BE%E0%A4%9D%E0%A5%80" title="ज्युसेप्पे पियाझी – Marathi" lang="mr" hreflang="mr" data-title="ज्युसेप्पे पियाझी" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Maleis" lang="ms" hreflang="ms" data-title="Giuseppe Piazzi" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleis" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Maltees" lang="mt" hreflang="mt" data-title="Giuseppe Piazzi" data-language-autonym="Malti" data-language-local-name="Maltees" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Nedersaksisch" lang="nds" hreflang="nds" data-title="Giuseppe Piazzi" data-language-autonym="Plattdüütsch" data-language-local-name="Nedersaksisch" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Noors - Nynorsk" lang="nn" hreflang="nn" data-title="Giuseppe Piazzi" data-language-autonym="Norsk nynorsk" data-language-local-name="Noors - Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Noors - Bokmål" lang="nb" hreflang="nb" data-title="Giuseppe Piazzi" data-language-autonym="Norsk bokmål" data-language-local-name="Noors - Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Occitaans" lang="oc" hreflang="oc" data-title="Giuseppe Piazzi" data-language-autonym="Occitan" data-language-local-name="Occitaans" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Pools" lang="pl" hreflang="pl" data-title="Giuseppe Piazzi" data-language-autonym="Polski" data-language-local-name="Pools" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%BE%DB%81_%D9%BE%DB%8C%D8%A7%D8%AA%D8%B3%DB%8C" title="جوزپہ پیاتسی – Western Punjabi" lang="pnb" hreflang="pnb" data-title="جوزپہ پیاتسی" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Portugees" lang="pt" hreflang="pt" data-title="Giuseppe Piazzi" data-language-autonym="Português" data-language-local-name="Portugees" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Roemeens" lang="ro" hreflang="ro" data-title="Giuseppe Piazzi" data-language-autonym="Română" data-language-local-name="Roemeens" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D1%8C%D1%8F%D1%86%D1%86%D0%B8,_%D0%94%D0%B6%D1%83%D0%B7%D0%B5%D0%BF%D0%BF%D0%B5" title="Пьяцци, Джузеппе – Russisch" lang="ru" hreflang="ru" data-title="Пьяцци, Джузеппе" data-language-autonym="Русский" data-language-local-name="Russisch" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Giuseppi_Piazzi" title="Giuseppi Piazzi – Siciliaans" lang="scn" hreflang="scn" data-title="Giuseppi Piazzi" data-language-autonym="Sicilianu" data-language-local-name="Siciliaans" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Schots" lang="sco" hreflang="sco" data-title="Giuseppe Piazzi" data-language-autonym="Scots" data-language-local-name="Schots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Servo-Kroatisch" lang="sh" hreflang="sh" data-title="Giuseppe Piazzi" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Servo-Kroatisch" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Simple English" lang="en-simple" hreflang="en-simple" data-title="Giuseppe Piazzi" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Slowaaks" lang="sk" hreflang="sk" data-title="Giuseppe Piazzi" data-language-autonym="Slovenčina" data-language-local-name="Slowaaks" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Sloveens" lang="sl" hreflang="sl" data-title="Giuseppe Piazzi" data-language-autonym="Slovenščina" data-language-local-name="Sloveens" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Albanees" lang="sq" hreflang="sq" data-title="Giuseppe Piazzi" data-language-autonym="Shqip" data-language-local-name="Albanees" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%82%D1%83%D0%B7%D0%B5%D0%BF%D0%B5_%D0%9F%D1%98%D0%B0%D1%86%D0%B8" title="Ђузепе Пјаци – Servisch" lang="sr" hreflang="sr" data-title="Ђузепе Пјаци" data-language-autonym="Српски / srpski" data-language-local-name="Servisch" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Zweeds" lang="sv" hreflang="sv" data-title="Giuseppe Piazzi" data-language-autonym="Svenska" data-language-local-name="Zweeds" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AE%BF%E0%AE%AF%E0%AF%82%E0%AE%9A%E0%AF%86%E0%AE%AA%E0%AF%8D%E0%AE%AA%E0%AF%87_%E0%AE%AA%E0%AE%BF%E0%AE%AF%E0%AE%BE%E0%AE%9A%E0%AE%BF" title="கியூசெப்பே பியாசி – Tamil" lang="ta" hreflang="ta" data-title="கியூசெப்பே பியாசி" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%88%E0%B8%B9%E0%B9%80%E0%B8%8B%E0%B8%9B%E0%B9%80%E0%B8%9B_%E0%B8%9B%E0%B8%B5%E0%B8%AD%E0%B8%B1%E0%B8%8B%E0%B8%8B%E0%B8%B5" title="จูเซปเป ปีอัซซี – Thai" lang="th" hreflang="th" data-title="จูเซปเป ปีอัซซี" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Tagalog" lang="tl" hreflang="tl" data-title="Giuseppe Piazzi" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Turks" lang="tr" hreflang="tr" data-title="Giuseppe Piazzi" data-language-autonym="Türkçe" data-language-local-name="Turks" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%B6%D1%83%D0%B7%D0%B5%D0%BF%D0%BF%D0%B5_%D0%9F%D1%96%D0%B0%D1%86%D1%86%D1%96" title="Джузеппе Піацці – Oekraïens" lang="uk" hreflang="uk" data-title="Джузеппе Піацці" data-language-autonym="Українська" data-language-local-name="Oekraïens" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AC%D9%88%D8%B2%D9%BE%DB%81_%D9%BE%DB%8C%D8%A7%D8%AA%D8%B3%DB%8C" title="جوزپہ پیاتسی – Urdu" lang="ur" hreflang="ur" data-title="جوزپہ پیاتسی" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Oezbeeks" lang="uz" hreflang="uz" data-title="Giuseppe Piazzi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Oezbeeks" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Vietnamees" lang="vi" hreflang="vi" data-title="Giuseppe Piazzi" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamees" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Giuseppe_Piazzi" title="Giuseppe Piazzi – Waray" lang="war" hreflang="war" data-title="Giuseppe Piazzi" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%9C%B1%E5%A1%9E%E6%99%AE%C2%B7%E7%9A%AE%E4%BA%9A%E9%BD%90" title="朱塞普·皮亚齐 – Wuyu" lang="wuu" hreflang="wuu" data-title="朱塞普·皮亚齐" data-language-autonym="吴语" data-language-local-name="Wuyu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%AF%E1%83%A3%E1%83%96%E1%83%94%E1%83%9E%E1%83%94_%E1%83%9E%E1%83%98%E1%83%90%E1%83%AA%E1%83%98" title="ჯუზეპე პიაცი – Mingreels" lang="xmf" hreflang="xmf" data-title="ჯუზეპე პიაცი" data-language-autonym="მარგალური" data-language-local-name="Mingreels" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%93%D7%96%D7%A9%D7%95%D7%A1%D7%A2%D7%A4%D7%A2_%D7%A4%D7%99%D7%90%D7%A6%D7%99" title="דזשוסעפע פיאצי – Jiddisch" lang="yi" hreflang="yi" data-title="דזשוסעפע פיאצי" data-language-autonym="ייִדיש" data-language-local-name="Jiddisch" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%9C%B1%E5%A1%9E%E4%BD%A9%C2%B7%E7%9A%AE%E4%BA%9E%E9%BD%8A" title="朱塞佩·皮亞齊 – Chinees" lang="zh" hreflang="zh" data-title="朱塞佩·皮亞齊" data-language-autonym="中文" data-language-local-name="Chinees" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14280#sitelinks-wikipedia" title="Taalkoppelingen bewerken" class="wbc-editpage">Koppelingen bewerken</a></span></div> </div> </div> </div> </header> <div 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src="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/Giuseppe_Piazzi.jpg/200px-Giuseppe_Piazzi.jpg" decoding="async" width="200" height="254" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/Giuseppe_Piazzi.jpg/300px-Giuseppe_Piazzi.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/92/Giuseppe_Piazzi.jpg/400px-Giuseppe_Piazzi.jpg 2x" data-file-width="696" data-file-height="885" /></a><figcaption>Giuseppe Piazzi</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Bestand:Piazzi_Cerere.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Piazzi_Cerere.jpg/200px-Piazzi_Cerere.jpg" decoding="async" width="200" height="294" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/1/1e/Piazzi_Cerere.jpg 1.5x" data-file-width="250" data-file-height="368" /></a><figcaption>Voorplaat van Piazzi's boek over zijn ontdekking van Ceres, destijds de achtste planeet. De afbeelding toont de baai van Palermo gezien vanuit het Oosten en een <a href="/wiki/Cupido_(mythologie)" title="Cupido (mythologie)">Amor</a> met <a href="/wiki/Refractor_(telescoop)" title="Refractor (telescoop)">Refractor (telescoop)</a>. In de lucht zijn de godin <a href="/wiki/Ceres_(godin)" title="Ceres (godin)">Ceres</a> en de planeten <a href="/wiki/Saturnus_(planeet)" title="Saturnus (planeet)">Saturnus</a> en <a href="/wiki/Ceres_(dwergplaneet)" title="Ceres (dwergplaneet)">Ceres</a> te zien. <a href="/wiki/Palermo_(stad)" title="Palermo (stad)">Palermo</a>, Stampa Reale, <a href="/wiki/1802" title="1802">1802</a></figcaption></figure> <p><b>Giuseppe Piazzi</b> (<a href="/wiki/Ponte_in_Valtellina" title="Ponte in Valtellina">Ponte in Valtellina</a>, <a href="/wiki/1746" title="1746">1746</a> - <a href="/wiki/Napels_(stad)" title="Napels (stad)">Napels</a>, <a href="/wiki/22_juli" title="22 juli">22 juli</a> <a href="/wiki/1826" title="1826">1826</a>) was een <a href="/wiki/Astronoom" title="Astronoom">astronoom</a>, <a href="/wiki/Wiskundige" title="Wiskundige">wiskundige</a> en <a href="/wiki/Theatijnen" title="Theatijnen">Theatijner</a> <a href="/wiki/Monnik" title="Monnik">monnik</a>. Hij ontdekte in <a href="/wiki/1801" title="1801">1801</a> te <a href="/wiki/Palermo_(stad)" title="Palermo (stad)">Palermo</a> de dwergplaneet <a href="/wiki/Ceres_(dwergplaneet)" title="Ceres (dwergplaneet)">Ceres</a>. Hij onderwees <a href="/wiki/Filosofie" title="Filosofie">filosofie</a> in <a href="/wiki/Gen%C3%A8ve_(stad)" title="Genève (stad)">Genève</a>, wiskunde aan de universiteit van <a href="/wiki/Malta_(eiland)" title="Malta (eiland)">Malta</a> en <a href="/wiki/Theologie" title="Theologie">theologie</a> in Rome. </p> <div class="mw-heading mw-heading2"><h2 id="Ontdekking_van_Ceres">Ontdekking van Ceres</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Giuseppe_Piazzi&veaction=edit&section=1" title="Bewerk dit kopje: Ontdekking van Ceres" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Giuseppe_Piazzi&action=edit&section=1" title="De broncode bewerken van de sectie: Ontdekking van Ceres"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Piazzi is vooral bekend om zijn ontdekking van <a href="/wiki/1_januari" title="1 januari">1 januari</a> <a href="/wiki/1801" title="1801">1801</a>: een object dat scheen te bewegen tegen de achtergrond van vaste <a href="/wiki/Ster_(hemellichaam)" title="Ster (hemellichaam)">sterren</a>. Eerst dacht hij een nieuwe ster ontdekt te hebben. Maar toen het hem opviel dat het object bewoog, raakte hij ervan overtuigd dat het een <a href="/wiki/Planeet" title="Planeet">planeet</a> was – of een "nieuwe ster", zoals hij het noemde. Hij was al negen jaar bezig stercatalogussen te controleren. Hij onderzocht die avond de zevenentachtigste ster in de catalogus van de zodiakale sterren van de <a href="/wiki/Abt_(abdij)" title="Abt (abdij)">abt</a> La Caille, toen hij een vreemd lichtpuntje ontdekte. </p><p>In zijn <a href="/wiki/Dagboek_(persoonlijk)" title="Dagboek (persoonlijk)">dagboek</a> tekende Piazzi het volgende op: </p> <blockquote style="margin:1em 0; padding:0 32px;"><p>Haar licht was zwakjes en dezelfde kleur als <a href="/wiki/Jupiter_(planeet)" title="Jupiter (planeet)">Jupiter</a>, maar gelijk aan vele andere die tot de achtste <a href="/wiki/Magnitude" title="Magnitude">magnitude</a> worden gerekend. Daarom twijfelde ik niet over haar aard. Toen ik op de avond van de 2e mijn waarneming herhaalde en vond dat deze noch in tijd noch in <a href="/wiki/Hoogte" title="Hoogte">hoogte</a> overeenkwam met de <a href="/wiki/Zenit_(astronomie)" title="Zenit (astronomie)">zenit</a>, begon ik te twijfelen of er een fout zat in de eerste waarneming. Pas later kwam bij mij een klein vermoeden op dat het een nieuwe ster (<i>nuovo astro</i>) kon zijn. De avond van de derde werd mijn vermoeden zekerheid, toen ik me ervan overtuigde dat het geen vaste ster was. Toch wachtte ik alvorens erover te spreken tot de avond van de vierde, waarop ik de voldoening had te zien dat ze zich verplaatst had met dezelfde snelheid als de voorgaande dagen.</p></blockquote> <p>Ondanks zijn vermoeden dat het een planeet betrof, was Piazzi voorzichtig en kondigde hij zijn ontdekking aan als een <a href="/wiki/Komeet" title="Komeet">komeet</a>. Hij maakte zijn vermoeden pas bekend aan de <a href="/wiki/Milaan_(stad)" title="Milaan (stad)">Milanese</a> astronoom Barnaba Oriani, die hij een brief schreef met de volgende opmerking: </p> <blockquote style="margin:1em 0; padding:0 32px;"><p>Ik heb deze <i>ster</i> bekendgemaakt als een komeet , maar omdat zij niet vergezeld gaat van enige nevel en verder haar beweging zo langzaam is en vrij uniform, is de gedachte meermalen bij me opgekomen dat het iets beters is dan een komeet. Maar ik heb deze gedachte expres niet publiekelijk geuit.</p></blockquote> <p>Piazzi kon het object niet lang genoeg volgen om met de bestaande technieken zijn baan te berekenen. Maar de bekende <a href="/wiki/Wiskundige" title="Wiskundige">wiskundige</a> <a href="/wiki/Carl_Friedrich_Gauss" title="Carl Friedrich Gauss">Carl Friedrich Gauss</a> ontwikkelde een nieuwe methode van baanberekening - de <a href="/wiki/Kleinste-kwadratenmethode" title="Kleinste-kwadratenmethode">kleinste kwadratenmethode</a> - waarvoor weinig punten nodig waren die het astronomen mogelijk maakte de <a href="/wiki/Baanelement" title="Baanelement">baanelementen</a> te bepalen en het object terug te vinden. Toen bleek dat Piazzi's vermoeden juist was: het object was geen komeet maar een kleine planeet. Bovendien voorspelde de <a href="/wiki/Wet_van_Titius-Bode" title="Wet van Titius-Bode">wet van Titius-Bode</a> op vrijwel dezelfde positie een planeet. </p> <div class="mw-heading mw-heading2"><h2 id="Naam_Ceres">Naam Ceres</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Giuseppe_Piazzi&veaction=edit&section=2" title="Bewerk dit kopje: Naam Ceres" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Giuseppe_Piazzi&action=edit&section=2" title="De broncode bewerken van de sectie: Naam Ceres"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Piazzi noemde zijn ontdekking "Ceres Ferdinandea", naar de Romeinse <a href="/wiki/Ceres_(godin)" title="Ceres (godin)">godin van het graan</a> en naar koning <a href="/wiki/Ferdinand_I_der_Beide_Sicili%C3%ABn" title="Ferdinand I der Beide Siciliën">Ferdinand IV</a> van Napels en Sicilië. Het Ferdinandea-deel van deze naam kwam later om politieke redenen te vervallen. <a href="/wiki/Ceres_(dwergplaneet)" title="Ceres (dwergplaneet)">Ceres</a> bleek de eerste en grootste van de <a href="/wiki/Planeto%C3%AFde" title="Planetoïde">planetoïden</a> in de <a href="/wiki/Planeto%C3%AFdengordel" title="Planetoïdengordel">planetoïdengordel</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Vernoemd_naar_Piazzi">Vernoemd naar Piazzi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Giuseppe_Piazzi&veaction=edit&section=3" title="Bewerk dit kopje: Vernoemd naar Piazzi" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Giuseppe_Piazzi&action=edit&section=3" title="De broncode bewerken van de sectie: Vernoemd naar Piazzi"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>planetoïde - In <a href="/wiki/1923" title="1923">1923</a> werd de duizendste ontdekt, die ter ere van Piazzi "<a href="/wiki/1000_Piazzia" title="1000 Piazzia">1000 Piazzia</a>" werd gedoopt.</li> <li><a href="/wiki/Krater_(landschapsvorm)" title="Krater (landschapsvorm)">krater</a> - Een recente ontdekking op Ceres (een grote, witte vlek die vermoedelijk een krater is en die werd waargenomen door de <a href="/wiki/Ruimtetelescoop_Hubble" title="Ruimtetelescoop Hubble">ruimtetelescoop Hubble</a>) wordt informeel ook "Piazzi" genoemd.</li></ul> <div class="interProject commons mw-list-item" style="display:none;"><a href="https://commons.wikimedia.org/wiki/Category:Giuseppe_Piazzi#mw-subcategories" class="extiw" title="commons:Category:Giuseppe Piazzi">Mediabestanden</a></div> <div class="interProjectTemplate interProject-groot toccolours" style="display:flex; gap:1em; align-items:center; clear:both; margin:1em 0 -0.5em 0;"> <div style="min-width:max-content;"><span class="noviewer noresize" 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