{"id":139,"date":"2022-10-26T11:59:46","date_gmt":"2022-10-26T09:59:46","guid":{"rendered":"https:\/\/mens.ch\/?page_id=139"},"modified":"2026-01-15T13:26:37","modified_gmt":"2026-01-15T12:26:37","slug":"astronomie","status":"publish","type":"page","link":"https:\/\/mens.ch\/?page_id=139","title":{"rendered":"Astronomie"},"content":{"rendered":"\n<p>Himmel \u00fcber Dornach (&lt;ctrl&gt;F5 f\u00fcr Refresh)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/astronomie\/himmel.jpg\" alt=\"Himmel \u00fcber Dornach\" class=\"wp-image-146\" style=\"aspect-ratio:1.7777777777777777;width:843px;height:auto\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Analemma:<\/h2>\n\n\n\n<p>So sieht die Sonnenbahn geozentrisch aus, wenn man sie jeweils um die gleiche Zeit t\u00e4glich fotografiert und das \u00fcber 2 Jahre. Klingt ganz einfach, aber die Kamera muss Sonnenlicht und -10\u00b0C &#8230; +35\u00b0C aushalten, ausserdem darf die Uhr nicht mehr als 1 sec. \/ Jahr falsch gehen.<\/p>\n\n\n\n<p>Daraus kann man die Exentrizit\u00e4t der Erdbahn berechnen. Da ich nicht genau um 12:00 Sonnenzeit (an der Tag und Nachtgleiche) die Aufnahmen gemacht habe, sondern etwa 15min fr\u00fcher, muss man das Analemma noch etwas rotieren (linkes Diagramm). Wenn man dann die Exentrizit\u00e4t bestimmt, wird der Wert immerhin auf 6% genau. (\u00dcbrigens ein sch\u00f6nes Jahresthema f\u00fcr Sch\u00fcler, die gern programmieren. Mehr per <a href=\"mailto:&#104;e&#x65;r&#x74;&#115;&#x63;&#104;&#x40;&#109;e&#x6e;s&#x2e;&#099;&#x68;?subject=Website%20Analemma\">Email<\/a>)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"736\" height=\"773\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2026\/01\/grafik-1.png\" alt=\"\" class=\"wp-image-469\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1360\" height=\"637\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2026\/01\/grafik.png\" alt=\"\" class=\"wp-image-465\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<iframe src=\"https:\/\/www.meteoblue.com\/de\/wetter\/widget\/seeing\/dornach-so_schweiz_2660989?geoloc=fixed&#038;noground=0\"  frameborder=\"0\" scrolling=\"NO\" allowtransparency=\"true\" sandbox=\"allow-same-origin allow-scripts allow-popups allow-popups-to-escape-sandbox\" style=\"width: 520px; height: 774px\"><\/iframe><div><!-- DO NOT REMOVE THIS LINK --><a href=\"https:\/\/www.meteoblue.com\/de\/wetter\/vorhersage\/seeing\/dornach-so_schweiz_2660989?utm_source=weather_widget&#038;utm_medium=linkus&#038;utm_content=seeing&#038;utm_campaign=Weather%2BWidget\" target=\"_blank\" rel=\"noopener\">meteoblue<\/a><\/div>\n\n\n\n<p class=\"has-background-color has-foreground-background-color has-text-color has-background\">Hier (via obiges Menu) sind Texte (und Bilder), die sich mit Astronomie besch\u00e4ftigen.<br \/>Und meine Bilder auf <a href=\"hhttps:\/\/app.astrobin.com\/u\/HB9HCI#gallery\" target=\"_blank\" rel=\"noreferrer noopener\">astrobin<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"2560\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-rotated.jpg\" alt=\"\" class=\"wp-image-150\" style=\"width:249px;height:auto\" srcset=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-rotated.jpg 1440w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-169x300.jpg 169w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-576x1024.jpg 576w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-768x1365.jpg 768w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-864x1536.jpg 864w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-1152x2048.jpg 1152w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-100x178.jpg 100w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-150x267.jpg 150w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-200x356.jpg 200w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-300x533.jpg 300w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-450x800.jpg 450w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-600x1067.jpg 600w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-900x1600.jpg 900w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-1250x2222.jpg 1250w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/10\/20221025_093545-400x711.jpg 400w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-background-color has-foreground-background-color has-text-color has-background\">Als Sch\u00fcler war ich einst Leiter der Astronomie-AG in einem Internat. <br \/>Gegen Ende kommt die Sehnsucht nach Beobachtung der Sterne zur\u00fcck&#8230;.<\/p>\n\n\n\n<p class=\"has-background-color has-foreground-background-color has-text-color has-background\">Meine Ausr\u00fcstung:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Meade 10&#8243; SCT<\/em> (Schmidt Cassegrain)<\/li>\n\n\n\n<li><em><a href=\"https:\/\/www.astroshop.de\/sonnenteleskope\/coronado-sonnenteleskop-st-40-400-pst-personal-solar-telescope-%3C0-5a-ota\/p,10314\" target=\"_blank\" rel=\"noreferrer noopener\">Coronado PST<\/a> (f\u00fcr Sonnenbeobachtung)<\/em><\/li>\n\n\n\n<li><a href=\"https:\/\/www.astroshop.de\/teleskope\/skywatcher-teleskop-n-150-750-star-discovery-p1-50i-synscan-wifi-goto\/p,57364\" target=\"_blank\" rel=\"noreferrer noopener\"><em>6&#8243;<\/em> <em>Newton Skywatcher<\/em><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/store.seestar.com\/de\/products\/seestar-s50\" data-type=\"link\" data-id=\"https:\/\/store.seestar.com\/de\/products\/seestar-s50\">Seestar S50 <\/a>mein Liebling: findet Himmelsobjekte selbst. Viele Bilder auf <a href=\"hhttps:\/\/app.astrobin.com\/u\/HB9HCI#gallery\" target=\"_blank\" rel=\"noreferrer noopener\">Astrobin<\/a> habe ich damit gemacht. Wie hier den Andromeda-Nebel (eigentlich eine Galaxie) M31.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"522\" height=\"877\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2026\/01\/grafik-2.png\" alt=\"M31 Andromeda Nebel\" class=\"wp-image-481\" style=\"width:471px;height:auto\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-default\"\/>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"720\" src=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger.jpg\" alt=\"Flieger vor Sonne im H alpha Licht\" class=\"wp-image-229\" style=\"aspect-ratio:0.8344671201814059;width:348px;height:auto\" srcset=\"https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger.jpg 600w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-250x300.jpg 250w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-100x120.jpg 100w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-150x180.jpg 150w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-200x240.jpg 200w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-300x360.jpg 300w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-450x540.jpg 450w, https:\/\/mens.ch\/wp-content\/uploads\/sites\/4\/2022\/11\/Sonne-und-Flieger-400x480.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">Flieger vor der Sonne im H<sub>alpha <\/sub>Licht<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u00dcberraschungen<\/h2>\n\n\n\n<p>Manchmal gibt&#8217;s auch \u00dcberraschungen:<br \/>Bei einem Zeitrafferfilm flog pl\u00f6tzlich ein Jet durchs Bild.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Himmel \u00fcber Dornach (&lt;ctrl&gt;F5 f\u00fcr Refresh) Analemma: So sieht die Sonnenbahn geozentrisch aus, wenn man sie jeweils um die gleiche Zeit t\u00e4glich fotografiert und das \u00fcber 2 Jahre. Klingt ganz einfach, aber die Kamera muss Sonnenlicht und -10\u00b0C &#8230; +35\u00b0C<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/mens.ch\/?page_id=139\">Weiterlesen <span class=\"screen-reader-text\">Astronomie<\/span><span class=\"meta-nav\"> &#8250;<\/span><\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-139","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/pages\/139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mens.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=139"}],"version-history":[{"count":101,"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/pages\/139\/revisions"}],"predecessor-version":[{"id":504,"href":"https:\/\/mens.ch\/index.php?rest_route=\/wp\/v2\/pages\/139\/revisions\/504"}],"wp:attachment":[{"href":"https:\/\/mens.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}