{"id":259,"date":"2026-05-24T18:16:56","date_gmt":"2026-05-24T18:16:56","guid":{"rendered":"http:\/\/samueldelaunay.com\/?page_id=259"},"modified":"2026-05-27T23:13:26","modified_gmt":"2026-05-27T23:13:26","slug":"astrophysique","status":"publish","type":"page","link":"http:\/\/samueldelaunay.com\/index.php\/astrophysique\/","title":{"rendered":"Astrophysique"},"content":{"rendered":"<div data-colibri-id=\"259-c1\" class=\"style-243 style-local-259-c1 position-relative\">\n  <!---->\n  <div data-colibri-component=\"section\" data-colibri-id=\"259-c2\" id=\"overlappable-2\" class=\"h-section h-section-global-spacing d-flex align-items-lg-center align-items-md-center align-items-center style-273 style-local-259-c2 position-relative\">\n    <!---->\n    <!---->\n    <div class=\"h-section-grid-container h-section-boxed-container\">\n      <!---->\n      <div data-colibri-id=\"259-c3\" class=\"h-row-container gutters-row-lg-2 gutters-row-md-2 gutters-row-0 gutters-row-v-lg-2 gutters-row-v-md-2 gutters-row-v-2 style-291 style-local-259-c3 position-relative\">\n        <!---->\n        <div class=\"h-row justify-content-lg-center justify-content-md-center justify-content-center align-items-lg-stretch align-items-md-stretch align-items-stretch gutters-col-lg-2 gutters-col-md-2 gutters-col-0 gutters-col-v-lg-2 gutters-col-v-md-2 gutters-col-v-2\">\n          <!---->\n          <div class=\"h-column h-column-container d-flex h-col-lg-auto h-col-md-auto h-col-auto style-292-outer style-local-259-c4-outer\">\n            <div data-colibri-id=\"259-c4\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-0 h-px-md-0 h-px-0 v-inner-lg-0 v-inner-md-0 v-inner-0 style-292 style-local-259-c4 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-start align-self-md-start align-self-start\">\n                <!---->\n                <div data-colibri-id=\"259-c5\" class=\"h-x-container style-293 style-local-259-c5 position-relative h-element\">\n                  <!---->\n                  <div class=\"h-x-container-inner style-dynamic-259-c5-group style-293-spacing style-local-259-c5-spacing\"><span class=\"h-button__outer style-294-outer style-local-259-c6-outer d-inline-flex h-element\"><a h-use-smooth-scroll=\"true\" href=\"http:\/\/samueldelaunay.com\/\"  data-colibri-id=\"259-c6\" class=\"d-flex w-100 align-items-center h-button justify-content-lg-center justify-content-md-center justify-content-center style-294 style-local-259-c6 position-relative\"><!----><!----> <span>Page d&rsquo;accueil<\/span><\/a>\n                    <\/span>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n      <div data-colibri-id=\"259-c7\" class=\"h-row-container gutters-row-lg-2 gutters-row-md-2 gutters-row-0 gutters-row-v-lg-2 gutters-row-v-md-2 gutters-row-v-2 style-497 style-local-259-c7 position-relative\">\n        <!---->\n        <div class=\"h-row justify-content-lg-center justify-content-md-center justify-content-center align-items-lg-stretch align-items-md-stretch align-items-stretch gutters-col-lg-2 gutters-col-md-2 gutters-col-0 gutters-col-v-lg-2 gutters-col-v-md-2 gutters-col-v-2\">\n          <!---->\n          <div class=\"h-column h-column-container d-flex h-col-lg-auto h-col-md-auto h-col-auto style-498-outer style-local-259-c8-outer\">\n            <div data-colibri-id=\"259-c8\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-0 h-px-md-0 h-px-0 v-inner-lg-0 v-inner-md-0 v-inner-0 style-498 style-local-259-c8 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-start align-self-md-start align-self-start\">\n                <!---->\n                <div data-colibri-id=\"259-c9\" class=\"h-text h-text-component style-499 style-local-259-c9 position-relative h-element\">\n                  <!---->\n                  <!---->\n                  <div class=\"\">\n                    <p>Ces livrets sont d\u00e9pos\u00e9s aupr\u00e8s de la Soci\u00e9t\u00e9 des Gens de Lettre &#8211; Paris<\/p>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n      <div data-colibri-id=\"259-c10\" class=\"h-row-container gutters-row-lg-0 gutters-row-md-0 gutters-row-2 gutters-row-v-lg-0 gutters-row-v-md-0 gutters-row-v-2 style-274 style-local-259-c10 position-relative\">\n        <!---->\n        <div class=\"h-row justify-content-lg-center justify-content-md-center justify-content-center align-items-lg-stretch align-items-md-stretch align-items-stretch gutters-col-lg-0 gutters-col-md-0 gutters-col-2 gutters-col-v-lg-0 gutters-col-v-md-0 gutters-col-v-2\">\n          <!---->\n          <div class=\"h-column h-column-container d-flex h-col-lg-3 h-col-md-3 h-col-12 style-275-outer style-local-259-c11-outer\">\n            <div data-colibri-id=\"259-c11\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-3 h-px-md-3 h-px-2 v-inner-lg-3 v-inner-md-3 v-inner-2 style-275 style-local-259-c11 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-center align-self-md-center align-self-center\">\n                <!---->\n                <div data-colibri-id=\"259-c12\" class=\"h-icon style-276 style-local-259-c12 position-relative h-element\">\n                  <!---->\n                  <a href=\"http:\/\/samueldelaunay.com\/index.php\/analyse-des-amas-detoiles\/\" h-use-smooth-scroll=\"true\"><span class=\"h-svg-icon h-icon__icon style-276-icon style-local-259-c12-icon\"><!--Icon by Font Awesome (https:\/\/fontawesome.com)-->\n    <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" id=\"spinner\" viewBox=\"0 0 1792 1896.0833\">\n      <path d=\"M526 1394q0 53-37.5 90.5T398 1522q-52 0-90-38t-38-90q0-53 37.5-90.5T398 1266t90.5 37.5T526 1394zm498 206q0 53-37.5 90.5T896 1728t-90.5-37.5T768 1600t37.5-90.5T896 1472t90.5 37.5 37.5 90.5zM320 896q0 53-37.5 90.5T192 1024t-90.5-37.5T64 896t37.5-90.5T192 768t90.5 37.5T320 896zm1202 498q0 52-38 90t-90 38q-53 0-90.5-37.5T1266 1394t37.5-90.5 90.5-37.5 90.5 37.5 37.5 90.5zM558 398q0 66-47 113t-113 47-113-47-47-113 47-113 113-47 113 47 47 113zm1170 498q0 53-37.5 90.5T1600 1024t-90.5-37.5T1472 896t37.5-90.5T1600 768t90.5 37.5T1728 896zm-640-704q0 80-56 136t-136 56-136-56-56-136 56-136T896 0t136 56 56 136zm530 206q0 93-66 158.5T1394 622q-93 0-158.5-65.5T1170 398q0-92 65.5-158t158.5-66q92 0 158 66t66 158z\"><\/path>\n    <\/svg><\/span><\/a>\n                <\/div>\n                <div data-colibri-id=\"259-c13\" class=\"h-global-transition-all h-heading style-277 style-local-259-c13 position-relative h-element\">\n                  <!---->\n                  <div class=\"h-heading__outer style-277 style-local-259-c13\">\n                    <!---->\n                    <!---->\n                    <h5 class=\"\">Analyse des\n                      <br>amas d&rsquo;\u00e9toiles<\/h5>\n                  <\/div>\n                <\/div>\n                <div data-colibri-id=\"259-c14\" class=\"h-text h-text-component style-278 style-local-259-c14 position-relative h-element\">\n                  <!---->\n                  <!---->\n                  <div class=\"\">\n                    <p>M\u00e9thode simplifi\u00e9e \u00e0 partir de la m\u00e9thode historique d&rsquo;Henrietta Leavitt&nbsp;<\/p>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n          <div class=\"h-column h-column-container d-flex h-col-lg-3 h-col-md-3 h-col-12 style-275-outer style-local-259-c15-outer\">\n            <div data-colibri-id=\"259-c15\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-3 h-px-md-3 h-px-2 v-inner-lg-3 v-inner-md-3 v-inner-2 style-275 style-local-259-c15 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-center align-self-md-center align-self-center\">\n                <!---->\n                <div data-colibri-id=\"259-c16\" class=\"h-icon style-276 style-local-259-c16 position-relative h-element\">\n                  <!---->\n                  <a href=\"http:\/\/samueldelaunay.com\/index.php\/analyses-individuelles-des-etoiles\/\" h-use-smooth-scroll=\"true\"><span class=\"h-svg-icon h-icon__icon style-276-icon style-local-259-c16-icon\"><!--Icon by Font Awesome (https:\/\/fontawesome.com)-->\n    <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" id=\"star\" viewBox=\"0 0 1664 1896.0833\">\n      <path d=\"M1664 647q0 22-26 48l-363 354 86 500q1 7 1 20 0 21-10.5 35.5T1321 1619q-19 0-40-12l-449-236-449 236q-22 12-40 12-21 0-31.5-14.5T301 1569q0-6 2-20l86-500L25 695Q0 668 0 647q0-37 56-46l502-73L783 73q19-41 49-41t49 41l225 455 502 73q56 9 56 46z\"><\/path>\n    <\/svg><\/span><\/a>\n                <\/div>\n                <div data-colibri-id=\"259-c17\" class=\"h-global-transition-all h-heading style-277 style-local-259-c17 position-relative h-element\">\n                  <!---->\n                  <div class=\"h-heading__outer style-277 style-local-259-c17\">\n                    <!---->\n                    <!---->\n                    <h5 class=\"\">Analyse individuelle des \u00e9toiles<\/h5>\n                  <\/div>\n                <\/div>\n                <div data-colibri-id=\"259-c18\" class=\"h-text h-text-component style-278 style-local-259-c18 position-relative h-element\">\n                  <!---->\n                  <!---->\n                  <div class=\"\">\n                    <p>\u00c9toiles multiples, spectres, \u00e9toiles variables, \u00e9toile \u00e0 neutron, Soleil<\/p>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n          <div class=\"h-column h-column-container d-flex h-col-lg-3 h-col-md-3 h-col-12 style-275-outer style-local-259-c19-outer\">\n            <div data-colibri-id=\"259-c19\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-3 h-px-md-3 h-px-2 v-inner-lg-3 v-inner-md-3 v-inner-2 style-275 style-local-259-c19 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-center align-self-md-center align-self-center\">\n                <!---->\n                <div data-colibri-id=\"259-c20\" class=\"h-icon style-276 style-local-259-c20 position-relative h-element\">\n                  <!----><span class=\"h-svg-icon h-icon__icon style-276-icon style-local-259-c20-icon\"><!--Icon by Font Awesome (https:\/\/fontawesome.com)-->\n    <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" id=\"bullseye\" viewBox=\"0 0 1536 1896.0833\">\n      <path d=\"M1024 896q0 106-75 181t-181 75-181-75-75-181 75-181 181-75 181 75 75 181zm128 0q0-159-112.5-271.5T768 512 496.5 624.5 384 896t112.5 271.5T768 1280t271.5-112.5T1152 896zm128 0q0 212-150 362t-362 150-362-150-150-362 150-362 362-150 362 150 150 362zm128 0q0-130-51-248.5t-136.5-204-204-136.5T768 256t-248.5 51-204 136.5-136.5 204T128 896t51 248.5 136.5 204 204 136.5 248.5 51 248.5-51 204-136.5 136.5-204 51-248.5zm128 0q0 209-103 385.5T1153.5 1561 768 1664t-385.5-103T103 1281.5 0 896t103-385.5T382.5 231 768 128t385.5 103T1433 510.5 1536 896z\"><\/path>\n    <\/svg><\/span><\/div>\n                <div data-colibri-id=\"259-c21\" class=\"h-global-transition-all h-heading style-277 style-local-259-c21 position-relative h-element\">\n                  <!---->\n                  <div class=\"h-heading__outer style-277 style-local-259-c21\">\n                    <!---->\n                    <!---->\n                    <h5 class=\"\">n\u00e9buleuses et galaxies (En cours)<\/h5>\n                  <\/div>\n                <\/div>\n                <div data-colibri-id=\"259-c22\" class=\"h-text h-text-component style-278 style-local-259-c22 position-relative h-element\">\n                  <!---->\n                  <!---->\n                  <div class=\"\">\n                    <p>Structure des galaxies, naissance des \u00e9toiles dans les n\u00e9buleuses, amas de galaxies<\/p>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n          <div class=\"h-column h-column-container d-flex h-col-lg-3 h-col-md-3 h-col-12 style-279-outer style-local-259-c23-outer\">\n            <div data-colibri-id=\"259-c23\" class=\"d-flex h-flex-basis h-column__inner h-px-lg-3 h-px-md-3 h-px-2 v-inner-lg-3 v-inner-md-3 v-inner-2 style-279 style-local-259-c23 position-relative\">\n              <!---->\n              <!---->\n              <div class=\"w-100 h-y-container h-column__content h-column__v-align flex-basis-100 align-self-lg-center align-self-md-center align-self-center\">\n                <!---->\n                <div data-colibri-id=\"259-c24\" class=\"h-icon style-276 style-local-259-c24 position-relative h-element\">\n                  <!----><span class=\"h-svg-icon h-icon__icon style-276-icon style-local-259-c24-icon\"><!--Icon by Font Awesome (https:\/\/fontawesome.com)-->\n    <svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" id=\"moon-o\" viewBox=\"0 0 1536 1896.0833\">\n      <path d=\"M1262 1303q-54 9-110 9-182 0-337-90T570 977t-90-337q0-192 104-357-201 60-328.5 229T128 896q0 130 51 248.5t136.5 204 204 136.5 248.5 51q144 0 273.5-61.5T1262 1303zm203-85q-94 203-283.5 324.5T768 1664q-156 0-298-61t-245-164-164-245T0 896q0-153 57.5-292.5t156-241.5T449 197.5 739 129q44-2 61 39 18 41-15 72-86 78-131.5 181.5T608 640q0 148 73 273t198 198 273 73q118 0 228-51 41-18 72 13 14 14 17.5 34t-4.5 38z\"><\/path>\n    <\/svg><\/span><\/div>\n                <div data-colibri-id=\"259-c25\" class=\"h-global-transition-all h-heading style-277 style-local-259-c25 position-relative h-element\">\n                  <!---->\n                  <div class=\"h-heading__outer style-277 style-local-259-c25\">\n                    <!---->\n                    <!---->\n                    <h5 class=\"\">\u00c9tude du Syst\u00e8me Solaire (\u00e0 venir)<\/h5>\n                  <\/div>\n                <\/div>\n                <div data-colibri-id=\"259-c26\" class=\"h-text h-text-component style-278 style-local-259-c26 position-relative h-element\">\n                  <!---->\n                  <!---->\n                  <div class=\"\">\n                    <p><strong style=\"font-weight: 400; font-size: 16px; font-family: Open Sans; color: rgb(70, 112, 127);\">Plan\u00e8tes et leurs satellites, com\u00e8tes et autres visiteurs lointains<\/strong><\/p>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Page d&rsquo;accueil Ces livrets sont d\u00e9pos\u00e9s aupr\u00e8s de la Soci\u00e9t\u00e9 des Gens de Lettre &#8211; Paris Analyse des amas d&rsquo;\u00e9toiles M\u00e9thode simplifi\u00e9e \u00e0 partir de la m\u00e9thode historique d&rsquo;Henrietta Leavitt&nbsp; Analyse individuelle des \u00e9toiles \u00c9toiles multiples, spectres, \u00e9toiles variables, \u00e9toile \u00e0 neutron, Soleil n\u00e9buleuses et galaxies (En cours) Structure des galaxies, naissance des \u00e9toiles dans [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/full-width-page.php","meta":{"footnotes":""},"class_list":["post-259","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/pages\/259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/comments?post=259"}],"version-history":[{"count":20,"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/pages\/259\/revisions"}],"predecessor-version":[{"id":1136,"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/pages\/259\/revisions\/1136"}],"wp:attachment":[{"href":"http:\/\/samueldelaunay.com\/index.php\/wp-json\/wp\/v2\/media?parent=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}