{"id":3343,"date":"2023-09-19T11:37:41","date_gmt":"2023-09-19T11:37:41","guid":{"rendered":"https:\/\/msealey.co.uk\/K12-Journeys\/?post_type=lesson&#038;p=3343"},"modified":"2024-05-22T15:59:44","modified_gmt":"2024-05-22T15:59:44","slug":"sagittarius-a-ds","status":"publish","type":"lesson","link":"https:\/\/msealey.co.uk\/K12-Journeys\/lesson\/sagittarius-a-ds\/","title":{"rendered":"Sagittarius A* (DS)"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-f56f613f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><div class=\"class-box class-image\">\r\n\t<ul class=\"data-list\">\r\n\t\t<li>\r\n\t\t\t<a class=\"\" title=\"Journey deeper into Space\" href=\"https:\/\/msealey.co.uk\/K12-Journeys\/journeys\/journey-deeper-into-space\/\" rel=\"noopener\">\r\n\t\t\t\r\n\t\t\t\t<img decoding=\"async\" class=\"class-logo medium\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/07\/Journey_deeper_into_Space-Tall.png\" alt=\"Journey deeper into Space\" title=\"Journey deeper into Space\" \/>\r\n\t\t\t\r\n\t\t\t<\/a>\r\n\t\t<\/li>\r\n\t<\/ul>\r\n<\/div>\r\n\r\n<!--<div class=\"class-box\">\r\n\t<h2 class=\"class-title\">Sagittarius A*<\/h2>\r\n<\/div>-->\r\n\r\n<h4 class=\"wp-block-heading class-header\">Key Information<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<h3 class=\"class-title\">Sagittarius A*<\/h3>\r\n\t<figure class=\"wp-block-table info-table\">\r\n\t\t<div class=\"table-wrapper\">\r\n\t\t\t<table class=\"class-table\">\r\n\t\t\t\t<tbody>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Type<\/td>\r\n\t\t\t\t\t<td>Supermassive black hole<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Diameter<\/td>\r\n\t\t\t\t\t<td>32.2 million miles<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Mass<\/td>\r\n\t\t\t\t\t<td>4 million solar masses<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Length of Day<\/td>\r\n\t\t\t\t\t<td>5.6 days<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Distance from Earth<\/td>\r\n\t\t\t\t\t<td>26,673 light years<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Date of Discovery<\/td>\r\n\t\t\t\t\t<td>1933<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<\/tbody>\r\n\t\t\t<\/table>\r\n\t\t<\/div>\r\n\t<\/figure>\r\n<\/div>\r\n\r\n<h4 class=\"wp-block-heading class-header\">Learning Point<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<ul>\n<li>The black hole at the <strong>center of our galaxy<\/strong> is known as <strong>Sagittarius A*<\/strong> and is the <strong>largest black hole<\/strong> in our galaxy. It is the source of huge amounts of X-Rays, and is classed as a <strong>supermassive black hole<\/strong>.<\/li>\n<\/ul>\n\r\n<\/div>\r\n\r\n<h4 class=\"wp-block-heading class-header\">Project<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<ul>\n<li>Find out when it was discovered, by whom, and when people began to think it was a black hole.<\/li>\n<\/ul>\n\r\n<\/div>\r\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-gutena-tabs gutena-tabs-block gutena-tabs-block-77de37-56 class-container class-tab\"><ul class=\"gutena-tabs-tab tab-flex\"><li class=\"gutena-tab-title active\" data-tab=\"1\"><div class=\"gutena-tab-title-content icon-top\"><div class=\"gutena-tab-title-text\"><div>Overview<\/div><\/div><\/div><\/li><li class=\"gutena-tab-title inactive\" data-tab=\"2\"><div class=\"gutena-tab-title-content icon-top\"><div class=\"gutena-tab-title-text\"><div>Real Photograph<\/div><\/div><\/div><\/li><li class=\"gutena-tab-title inactive\" data-tab=\"3\"><div class=\"gutena-tab-title-content icon-top\"><div class=\"gutena-tab-title-text\"><div>Star Movement (2018)<\/div><\/div><\/div><\/li><li class=\"gutena-tab-title inactive\" data-tab=\"4\"><div class=\"gutena-tab-title-content icon-top\"><div class=\"gutena-tab-title-text\"><div>Star Movement (2021)<\/div><\/div><\/div><\/li><\/ul><div class=\"gutena-tabs-content is-layout-flow wp-block-gutena-tabs-is-layout-flow\">\n<div class=\"wp-block-gutena-tab gutena-tab-block gutena-tab-block-543fc0-6f active class-box class-image\" data-tab=\"1\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A-1024x538.jpg\" alt=\"Sagittarius A*\" class=\"wp-image-1718\" srcset=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A-1024x538.jpg 1024w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A-300x158.jpg 300w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A-768x404.jpg 768w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A-1536x807.jpg 1536w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A2A.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-gutena-tab gutena-tab-block gutena-tab-block-05a1ad-fd inactive class-box class-image\" data-tab=\"2\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star-1024x1024.jpg\" alt=\"Real photograph of Sagittarius A*\" class=\"wp-image-1719\" srcset=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star-1024x1024.jpg 1024w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star-300x300.jpg 300w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star-150x150.jpg 150w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star-768x768.jpg 768w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">By <a href=\"https:\/\/en.wikipedia.org\/wiki\/Event_Horizon_Telescope\" class=\"extiw\" title=\"w:Event Horizon Telescope\">EHT Collaboration<\/a> &#8211; <a rel=\"nofollow\" class=\"external free\" href=\"https:\/\/www.eso.org\/public\/images\/eso2208-eht-mwa\/\">https:\/\/www.eso.org\/public\/images\/eso2208-eht-mwa\/<\/a> (<a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/cdn.eso.org\/images\/original\/eso2208-eht-mwa.tif\">image link<\/a>), <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\" title=\"Creative Commons Attribution 4.0\">CC BY 4.0<\/a>, <a href=\"https:\/\/commons.wikimedia.org\/w\/index.php?curid=117933557\">Link<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-gutena-tab gutena-tab-block gutena-tab-block-a6b1ac-a9 inactive class-box class-image\" data-tab=\"3\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"524\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sgr_A_2018_Movement.gif\" alt=\"Movement of stars around Sagittarius A*\" class=\"wp-image-1741\"\/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:SgrA2018.gif\">ESO\/MPE<\/a>, <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\">CC BY 4.0<\/a>, via Wikimedia Commons<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-gutena-tab gutena-tab-block gutena-tab-block-9f2fb3-4c inactive class-box class-image\" data-tab=\"4\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"546\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sgr_A_2021_Movement.gif\" alt=\"Movement of stars around Sagittarius A*\" class=\"wp-image-1742\"\/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:SgrA2021.gif\">ESO\/GRAVITY collaboration\/L. Cal\u00e7ada<\/a>, <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\">CC BY 4.0<\/a>, via Wikimedia Commons<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\r\n\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading class-header\">Location<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<div id='gallery-1' class='gallery galleryid-3343 gallery-columns-1 gallery-size-full'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"877\" height=\"1080\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star_Locaton.png\" class=\"attachment-full size-full\" alt=\"Location of Sagittarius A*\" aria-describedby=\"gallery-1-1720\" srcset=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star_Locaton.png 877w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star_Locaton-244x300.png 244w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star_Locaton-832x1024.png 832w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2023\/08\/Sagittarius_A_Star_Locaton-768x946.png 768w\" sizes=\"auto, (max-width: 877px) 100vw, 877px\" \/>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1720'>\n\t\t\t\t<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Sagittarius_IAU.svg\">IAU and Sky &amp; Telescope magazine (Roger Sinnott &amp; Rick Fienberg)<\/a>, <a href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\">CC BY 3.0<\/a>, via Wikimedia Commons\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\r\n\r\n\t<figure class=\"wp-block-table info-table\">\r\n\t\t<div class=\"table-wrapper\">\r\n\t\t\t<table class=\"class-table\">\r\n\t\t\t\t<tbody>\r\n\t\r\n\t\t\t\t<tr>\r\n\t\t\t\t\t<td class=\"class-table-title\">Located in<\/td>\r\n\t\t\t\t\t<td>Sagittarius constellation, within our Milk Way<\/td>\r\n\t\t\t\t<\/tr>\r\n\t\r\n\t\t\t\t<\/tbody>\r\n\t\t\t<\/table>\r\n\t\t<\/div>\r\n\t<\/figure>\r\n<\/div>\r\n\r\n<h4 class=\"wp-block-heading class-header\">Fun Facts<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<ul>\n<li>Sagittarius A* is thought to be around&nbsp;<strong>4 million suns<\/strong>&nbsp;in size, and&nbsp;<strong>bigger<\/strong>&nbsp;than the&nbsp;<strong>orbit of Mercury<\/strong>.<\/li>\n<li>The massive stars nearby&nbsp;<strong>orbit around the black hole<\/strong>&nbsp;and have helped us identify&nbsp;<strong>where<\/strong>&nbsp;it is and&nbsp;<strong>how big<\/strong>&nbsp;it is.<\/li>\n<li>The black hole was observed and a&nbsp;<strong>special picture produced<\/strong>&nbsp;to help us understand the&nbsp;<strong>basic shape<\/strong>&nbsp;of the&nbsp;<strong>accretion disk<\/strong>&nbsp;that is around it.<\/li>\n<\/ul>\n\r\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-f56f613f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><h4 class=\"wp-block-heading class-header\">Past Lessons<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<figure class=\"wp-block-table info-table\">\r\n\t\t<div class=\"table-wrapper\">\r\n\t\t\t<table class=\"class-list\">\r\n\t\t\t\t<tbody>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td class=\"icon\">69<\/td>\r\n\t\t\t\t\t\t<td class=\"class-table-title\">November 13, 2023<\/td>\r\n\t\t\t\t\t\t<td>(North America)<\/td>\r\n\t\t\t\t\t<\/tr>\r\n\t\t\t\t\t\r\n\t\t\t\t\t\r\n\t\t\t\t\t<tr class=\"hide-this-row\">\r\n\t\t\t\t\t\t<td colspan=\"3\">No Past Lessons<\/td>\r\n\t\t\t\t\t<\/tr>\r\n\t\t\t\t<\/tbody>\r\n\t\t\t<\/table>\r\n\t\t<\/div>\r\n\t<\/figure>\r\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\r\n<h4 class=\"wp-block-heading class-header\">Upcoming Lessons<\/h4>\r\n\r\n<div class=\"class-box\">\r\n\t<figure class=\"wp-block-table info-table\">\r\n\t\t<div class=\"table-wrapper\">\r\n\t\t\t<table class=\"class-list\">\r\n\t\t\t\t<tbody>\r\n\r\n\t\t\t\t\t\r\n\t\t\t\t\t\r\n\t\t\t\t\t\r\n\r\n\t\t\t\t\t<tr class=\"hide-this-row\">\r\n\t\t\t\t\t\t<td colspan=\"3\">No Upcoming Lessons<\/td>\r\n\t\t\t\t\t<\/tr>\r\n\t\t\t\t<\/tbody>\r\n\t\t\t<\/table>\r\n\t\t<\/div>\r\n\t<\/figure>\r\n<\/div>\r\n<\/div>\n<\/div>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3343","lesson","type-lesson","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/msealey.co.uk\/K12-Journeys\/wp-json\/wp\/v2\/lesson\/3343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/msealey.co.uk\/K12-Journeys\/wp-json\/wp\/v2\/lesson"}],"about":[{"href":"https:\/\/msealey.co.uk\/K12-Journeys\/wp-json\/wp\/v2\/types\/lesson"}],"wp:attachment":[{"href":"https:\/\/msealey.co.uk\/K12-Journeys\/wp-json\/wp\/v2\/media?parent=3343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}