{"id":10809,"date":"2025-05-08T15:45:24","date_gmt":"2025-05-08T15:45:24","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/et-rond-et-rond-petit-patapon-et-un-petit-papillon\/"},"modified":"2025-06-07T23:01:12","modified_gmt":"2025-06-07T21:01:12","slug":"et-rond-et-rond-petit-patapon-et-un-petit-papillon","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/et-rond-et-rond-petit-patapon-et-un-petit-papillon\/","title":{"rendered":"Et rond et rond petit patapon et un petit papillon"},"content":{"rendered":"<p>Il s&rsquo;agit des \u00ab\u00a0galaxies du H\u00e9ron\u00a0\u00bb (la galaxie NGC5395 constitue le corps tandis que la galaxie NGC5394 constitue le cou et le t\u00eate). Elles se trouvent dans la constellation des Chiens de Chasse.<br \/>\nElles sont en interaction gravitationnelle, c&rsquo;est d&rsquo;ailleurs pour cette raison qu&rsquo;elles ont \u00e9t\u00e9 introduites dans le catalogue des galaxies particuli\u00e8res d&rsquo;Halton Arp sous la d\u00e9nomination Arp84. Ces galaxies se trouvent \u00e0 environ 175 millions d\u2019ann\u00e9es-lumi\u00e8re de la Terre. Au bout du \u00ab\u00a0bec\u00a0\u00bb du h\u00e9ron, se trouve une galaxie tr\u00e8s lointaine (PGC2101092) laquelle est tr\u00e8s faible en luminosit\u00e9 (magnitude de 17.9). Il y a \u00e9galement d&rsquo;autres galaxies encore plus lointaines dans tout le champ photographi\u00e9.<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-Le-heron.jpg\" data-lbwps-width=\"1081\" data-lbwps-height=\"727\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-Le-heron-300x202.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-Le-heron-300x202.jpg\" alt=\"\" width=\"300\" height=\"202\" \/><\/a><\/p>\n<p>D\u00e9tails techniques : clich\u00e9 r\u00e9alis\u00e9 les 29 et 30 avril 2025 depuis le site de l&rsquo;observatoire de La Fosse avec un t\u00e9lescope C11 (280 mm de diam\u00e8tre) \u00e0 F\/D 6.8 (focale de 1785mm) et une camera SBIG ST10XME en mode LRVB. Ce clich\u00e9 totalise 6h30&prime; de pose.<\/p>\n<p>The Siamese Twin ou the Butterfly Galaxies (NGC4567 au dessus et NGC4568 en oblique, en dessous). Situ\u00e9 dans la Vierge, il s&rsquo;agit \u00e9galement d&rsquo;un couple en interaction qui finira par fusionner dans quelques centaines de millions d&rsquo;ann\u00e9es. Le couple se trouve \u00e0 environ 60 millions d\u2019ann\u00e9es-lumi\u00e8re de la Terre. La galaxie visible dans le haut de l\u2019image est NGC4564, une galaxie elliptique qui, elle, se trouve \u00e0 environ 71 millions d\u2019ann\u00e9es-lumi\u00e8re et n\u2019a donc rien \u00e0 voir avec les siamoises.<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-The-Siamese-Twin.jpg\" data-lbwps-width=\"2170\" data-lbwps-height=\"1466\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-The-Siamese-Twin-300x203.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20250508-The-Siamese-Twin-300x203.jpg\" alt=\"\" width=\"300\" height=\"203\" \/><\/a><\/p>\n<p>Cette vue a \u00e9t\u00e9 captur\u00e9e en mode LRVB avec la camera SBIG ST10XME plac\u00e9e au foyer r\u00e9duit du C11 (F= 1785mm, D=280mm) en 3 heures 45 le 1 mai depuis l\u2019observatoire de Lafosse.<\/p>\n<p>J-Luc<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;10809&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;10&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;10&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Veuillez voter&quot;,&quot;legend&quot;:&quot;10\\\/10 - (1 vote)&quot;,&quot;size&quot;:&quot;18&quot;,&quot;title&quot;:&quot;Et rond et rond petit patapon et un petit papillon&quot;,&quot;width&quot;:&quot;227.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"6\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"7\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"8\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"9\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"10\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 227.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 14.4px;\">\n            10\/10 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Il s&rsquo;agit des \u00ab\u00a0galaxies du H\u00e9ron\u00a0\u00bb (la galaxie NGC5395 constitue le corps tandis que la galaxie NGC5394 constitue le cou et le t\u00eate). Elles se trouvent dans la constellation des Chiens de Chasse. Elles sont en interaction gravitationnelle, c&rsquo;est d&rsquo;ailleurs pour cette raison qu&rsquo;elles ont \u00e9t\u00e9 introduites dans le catalogue des galaxies particuli\u00e8res d&rsquo;Halton Arp [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-10809","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=10809"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10809\/revisions"}],"predecessor-version":[{"id":10841,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10809\/revisions\/10841"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}