{"id":9575,"date":"2025-01-20T13:36:51","date_gmt":"2025-01-20T13:36:51","guid":{"rendered":"https:\/\/msealey.co.uk\/K12-Journeys\/?post_type=lesson&#038;p=9575"},"modified":"2025-04-08T09:34:31","modified_gmt":"2025-04-08T09:34:31","slug":"plasketts-star","status":"publish","type":"lesson","link":"https:\/\/msealey.co.uk\/K12-Journeys\/lesson\/plasketts-star\/","title":{"rendered":"Plaskett&#8217;s Star"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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 through Space\" href=\"https:\/\/msealey.co.uk\/K12-Journeys\/journeys\/journey-through-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_through_Space-Tall.png\" alt=\"Journey through Space\" title=\"Journey through 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\">Plaskett's Star<\/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\">Plaskett&#8217;s Star<\/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>Star System (binary)<\/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\">Star Types<\/td>\r\n\t\t\t\t\t<td>O8I (A), O7.5III (B) &#8211; Blue Supergiants<\/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>12,276,979 miles (A), 9,337,420 miles (B)<\/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>54 M\u2609 (A), 56 M\u2609 (B)<\/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\">Temperature<\/td>\r\n\t\t\t\t\t<td>59,840 \u00b0F (A), 58,940 \u00b0F (B)<\/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<\/td>\r\n\t\t\t\t\t<td>5,245 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>Before 1922<\/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\">Other Names<\/td>\r\n\t\t\t\t\t<td>V640 Monocerotis, HR 2422, HIP 31646, HD 47129<\/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><strong>Plaskett&#8217;s Star<\/strong> is a <strong>massive pair of stars<\/strong> orbiting each other. These stars are <strong>so huge and bright<\/strong> that they&#8217;re among the <strong>most massive stars known<\/strong>! They&#8217;re located far away, but even from that distance, they <strong>shine brightly<\/strong>. Studying Plaskett&#8217;s Star helps scientists <strong>understand how massive stars live, die, and even how they might explode as supernovas<\/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>Draw a picture of the two stars that make up Plaskett&#8217;s Star.<\/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><\/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\/2025\/01\/Plastketts_Star-1024x538.jpg\" alt=\"Plastkett's Star\" class=\"wp-image-9735\" srcset=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star-1024x538.jpg 1024w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star-300x158.jpg 300w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star-768x404.jpg 768w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star-1536x807.jpg 1536w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/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\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container 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-9575 gallery-columns-1 gallery-size-full'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"826\" height=\"650\" src=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star_Location.png\" class=\"attachment-full size-full\" alt=\"Location of Plaskett&#039;s Star\" aria-describedby=\"gallery-1-9734\" srcset=\"https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star_Location.png 826w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star_Location-300x236.png 300w, https:\/\/msealey.co.uk\/K12-Journeys\/wp-content\/uploads\/2025\/01\/Plastketts_Star_Location-768x604.png 768w\" sizes=\"auto, (max-width: 826px) 100vw, 826px\" \/>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-9734'>\n\t\t\t\tBy <a href=\"\/\/commons.wikimedia.org\/wiki\/File:Monoceros_constellation_map.png\" title=\"File:Monoceros constellation map.png\">Monoceros_constellation_map.png<\/a>: <a href=\"https:\/\/en.wikipedia.org\/wiki\/User:Bronger\" class=\"extiw\" title=\"en:User:Bronger\">Torsten Bronger<\/a>derivative work: <a href=\"\/\/commons.wikimedia.org\/w\/index.php?title=User:Kxx&amp;action=edit&amp;redlink=1\" class=\"new\" title=\"User:Kxx (page does not exist)\">Kxx<\/a> (<a href=\"\/\/commons.wikimedia.org\/wiki\/User_talk:Kxx\" title=\"User talk:Kxx\"><span class=\"signature-talk\">talk<\/span><\/a>) &#8211; <a href=\"\/\/commons.wikimedia.org\/wiki\/File:Monoceros_constellation_map.png\" title=\"File:Monoceros constellation map.png\">Monoceros_constellation_map.png<\/a>, <a href=\"http:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/\" title=\"Creative Commons Attribution-Share Alike 3.0\">CC BY-SA 3.0<\/a>, <a href=\"https:\/\/commons.wikimedia.org\/w\/index.php?curid=10850106\">Link<\/a>\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>Monoceros constellation, within our Milky 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><strong>Plaskett&#8217;s Star<\/strong> isn&#8217;t just one star, but <strong>two massive stars<\/strong> orbiting each other!<\/li>\n<li>These stars are <strong>incredibly huge<\/strong>, <strong>much bigger than our Sun<\/strong>.<\/li>\n<li>This amazing star system was discovered by a <strong>Canadian astronomer<\/strong> named <strong>John Stanley Plaskett<\/strong>.<\/li>\n<li>Even though it&#8217;s <strong>far away<\/strong>, Plaskett&#8217;s Star is <strong>very bright<\/strong> because it&#8217;s <strong>so massive<\/strong>.<\/li>\n<\/ul>\n\r\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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\">212<\/td>\r\n\t\t\t\t\t\t<td class=\"class-table-title\">February 4, 2025<\/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-9575","lesson","type-lesson","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/msealey.co.uk\/K12-Journeys\/wp-json\/wp\/v2\/lesson\/9575","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=9575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}