{"id":31642,"date":"2022-04-19T01:04:19","date_gmt":"2022-04-19T05:04:19","guid":{"rendered":"https:\/\/wading-in.net\/walkabout\/?p=31642"},"modified":"2022-04-19T01:04:19","modified_gmt":"2022-04-19T05:04:19","slug":"its-that-april-busy-season","status":"publish","type":"post","link":"https:\/\/wading-in.net\/walkabout\/2022\/04\/its-that-april-busy-season\/","title":{"rendered":"It&#8217;s that April busy season"},"content":{"rendered":"<p>Yes, indeed, like every year, we&#8217;re closing in on three principle events within April, and unlike some of the other &#8216;events&#8217; that pop up around this time of year, these are not at all mythological.<\/p>\n<p>First off, we&#8217;re already within the <a href=\"https:\/\/www.timeanddate.com\/astronomy\/meteor-shower\/lyrids.html\" rel=\"noopener\" target=\"_blank\"><strong>Lyrids Meteor Shower<\/strong><\/a>, though it peaks on the 21<sup>st<\/sup>-22<sup>nd<\/sup> &#8211; basically, go out whenever you get clear enough skies and give it a shot. On the peak nights, the moon will be rising just as the meteor activity is due to increase, not ideal, and it&#8217;s a waning gibbous moon so, still noticeably bright. The general rule is, after midnight the spot on Earth where you&#8217;re standing starts to face <em>into<\/em> the direction of Earth&#8217;s travel around the sun, which increases the likelihood of seeing meteors. This year, we have a little window around that time when the moon either hasn&#8217;t risen yet or has just risen and not gotten too high or bright, <em>and<\/em> the sun is as far from orbiting satellites as it can get, so our best chances of seeing something fall in there &#8211; weather cooperating, of course. Since we <em>still<\/em> haven&#8217;t gotten completely past this ridiculous tendency for overnight temperatures to drop to inexcusable levels, it might be less than comfortable out there, but hey, <em>I<\/em> didn&#8217;t plan this.<\/p>\n<p>I have yet to capture anything even remotely noteworthy, despite my attempts, but I have to note that, to the best of my knowledge, neither did anyone else anyplace within a few hundred kilometers of my location during any of the storms that I tried observing. What I&#8217;m saying is, there&#8217;s no <em>proof<\/em> that I suck.<\/p>\n<p>April 22<sup>nd<\/sup> is also <strong>Earth Day<\/strong>, so plan your visit there early because it&#8217;s sure to get crowded &#8211; scientists predict damn near everyone will be someplace on Earth that day. It&#8217;s a good time to see just how far you can get on strictly human power (well, camels are okay too I suppose,) or whether you can go the entire day without extraneous electricity, or things like that &#8211; trust me, I&#8217;m not getting preachy myself because I do too much stuff on a computer, even when I watch no TV myself<strong>;<\/strong> The Girlfriend and I watch an episode of <em>Bob&#8217;s Burgers<\/em> over dinner, three to four times a week, and that&#8217;s all the TV for me, but the <em>computer<\/em>, well&#8230; We&#8217;ll see if I can shut it down and leave it down for at least the day.<\/p>\n<p>April 24<sup>th<\/sup> is the &#8211; are you ready for this? &#8211; <strong>32<sup>nd<\/sup> anniversary of the launch of the Hubble Space Telescope<\/strong>, still going strong up there. Most people have at least heard of the newly-launched James Webb Space Telescope (&#8220;Webb&#8221; or &#8220;JWST&#8221; are fine,) and a lot think it&#8217;s Hubble&#8217;s replacement, which isn&#8217;t exactly true. Webb is geared towards more refined observations than Hubble, largely in the infra-red spectrum, so even though its main mirror, and thus its resolving power, are several times greater, it&#8217;ll be looking at different things.<\/p>\n<p>[Sidetrack here for trivia that has nothing to do with Hubble. Webb is &#8216;parked&#8217; at an imaginary point in space called Lagrange 2, or L2 &#8211; exactly opposite the Earth from the sun, so it will never receive any direct sunlight, and at such a distance that the gravitational pulls of both will help it remain there in orbit, self-stabilized. The instruments onboard need to be extremely cold to operate, so this is the best of the options available. It sits about 1.5 million kilometers out from Earth, about 1% of the distance between the Earth and the sun, but almost four times <em>farther<\/em> than the moon, and more than 2,600 times as far as Hubble. Unlike the Hubble, we&#8217;re not going to see it with any backyard telescope, especially since it perpetually remains in Earth&#8217;s shadow.]<\/p>\n<p>Anyway, <a href=\"https:\/\/hubblesite.org\/\" rel=\"noopener\" target=\"_blank\">Hubble&#8217;s still kicking<\/a> and can be spotted on certain nights &#8211; <a href=\"https:\/\/stellarium.org\/\" rel=\"noopener\" target=\"_blank\">Stellarium<\/a>, once again, is your bud.<\/p>\n<p><a href=\"https:\/\/hubblesite.org\/contents\/media\/images\/2022\/016\/01FZG0F3A2PVT496FCR2170W30?news=true\" rel=\"noopener\" target=\"_blank\"><figure id=\"attachment_31645\" aria-describedby=\"caption-attachment-31645\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/wading-in.net\/walkabout\/wp-content\/uploads\/2022\/04\/STScI-01FZG0Q4P4WFCPC00V01T1Q666-S.png\" alt=\"HST images of protoplanetary disk AB Aurigae b\" width=\"750\" height=\"488\" class=\"size-full wp-image-31645\" \/><figcaption id=\"caption-attachment-31645\" class=\"wp-caption-text\"><em>Credit: NASA and the Space Telescope Science Institute (STScI)<\/em><\/figcaption><\/figure><br clear=\"all\"\/><\/a><em>The image seen here shows a protoplanetary &#8216;blob,&#8217; essentially a forming string of planets, in very wide orbit around the star AB Aurigae. Courtesy of Hubble, we&#8217;re seeing a planet (likely a string of them) <a href=\"https:\/\/hubblesite.org\/contents\/news-releases\/2022\/news-2022-016\" rel=\"noopener\" target=\"_blank\">forming around a star 531 light years away<\/a>. Slick, right?<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yes, indeed, like every year, we&#8217;re closing in on three principle events within April, and unlike some of the other &#8216;events&#8217; that pop up around this time of year, these are not at all mythological. First off, we&#8217;re already within the Lyrids Meteor Shower, though it peaks on the 21st-22nd &#8211; basically, go out whenever [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,4,9],"tags":[6712,1735,791,795,6711],"class_list":["post-31642","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-nature","category-science","tag-ab-aurigae-b","tag-earth-day","tag-hubble-space-telescope","tag-james-webb-space-telescope","tag-lyrids-meteor-shower"],"_links":{"self":[{"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/posts\/31642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/comments?post=31642"}],"version-history":[{"count":0,"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/posts\/31642\/revisions"}],"wp:attachment":[{"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/media?parent=31642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/categories?post=31642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wading-in.net\/walkabout\/wp-json\/wp\/v2\/tags?post=31642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}