1.0Museums Wellingtonhttps://www.museumswellington.org.nzrich600338<blockquote class="wp-embedded-content" data-secret="CLzgXRFLuB"><a href="https://www.museumswellington.org.nz/look-after-our-night-sky/light-pollution-resources/what-is-light-pollution/skyglow/#main">Light Pollution SkyGlow</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.museumswellington.org.nz/look-after-our-night-sky/light-pollution-resources/what-is-light-pollution/skyglow/#main/embed/#?secret=CLzgXRFLuB" width="600" height="338" title="“Light Pollution SkyGlow” — Museums Wellington" data-secret="CLzgXRFLuB" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,l){"use strict";var e=!1,o=!1;if(l.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=0;o<n.length;o++)n[o].style.display="none";for(o=0;o<i.length;o++)if(r=i[o],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=l.createElement("a"),a=l.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,a.host===s.host)if(l.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=l.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> https://i0.wp.com/www.museumswellington.org.nz/wp-content/uploads/2020/04/SkyGlow-e1587519564661.jpg?fit=150%2C100&ssl=1150100Skyglow is the brightening of the night sky over inhabited areas, which reduces the contrast of stars or other celestial objects against the dark sky background. Some stars will blend into the background and become indistinguishable.