  {"id":143171,"date":"2021-06-07T11:05:46","date_gmt":"2021-06-07T21:05:46","guid":{"rendered":"https:\/\/www.hawaii.edu\/news\/?p=143171"},"modified":"2021-06-07T11:05:46","modified_gmt":"2021-06-07T21:05:46","slug":"lunar-eclipse-aids-in-locating-nso","status":"publish","type":"post","link":"https:\/\/www.hawaii.edu\/news\/2021\/06\/07\/lunar-eclipse-aids-in-locating-nso\/","title":{"rendered":"Lunar eclipse aids in locating 3 Near-Earth asteroids"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><figure id=\"attachment_143175\" aria-describedby=\"caption-attachment-143175\" style=\"width: 300px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2021\/06\/manoa-ifa-total-lunar-eclipse-feature-300x300.jpg\" alt=\"lunar eclipse\" width=\"300\" height=\"300\" class=\"size-medium wp-image-143175\" srcset=\"https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2021\/06\/manoa-ifa-total-lunar-eclipse-feature-300x300.jpg 300w, https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2021\/06\/manoa-ifa-total-lunar-eclipse-feature-130x130.jpg 130w, https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2021\/06\/manoa-ifa-total-lunar-eclipse-feature.jpg 676w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-143175\" class=\"wp-caption-text\">Total lunar eclipse in progress over <span aria-label=\"Hawaii\">Âé¶¹´«Ã½<\/span> on May 26. (Photo credit: Alex Dzierba)<\/figcaption><\/figure>\n<p>Every night, the University of <span aria-label=\"Hawaii\">Âé¶¹´«Ã½<\/span> Pan-STARRS telescopes on Hakeakal\u0101 scan the sky for Near-Earth Objects (<abbr>NEO<\/abbr>s), asteroids or comets that may come close to or even hit Earth in the future. The search is funded by <a href=\"https:\/\/www.nasa.gov\/planetarydefense\/neoo\/\"><abbr title=\"National Aeronautics and Space Administration\">NASA<\/abbr>\u2019s Near-Earth Object Observations Program<\/a>.<\/p>\n<p>For a few days each month, the bright full Moon hinders the search by making the sky brighter, which makes it more difficult to see these faint objects. So on May 26, when <span aria-label=\"Hawaii\">Âé¶¹´«Ã½<\/span> was in line for prime viewing of the total lunar eclipse&#8212;when the full Moon enters Earth\u2019s shadow\u2013observers at Pan-STARRS capitalized on this opportunity to observe with the darkened sky.<\/p>\n<p>As a particular <abbr>NEO<\/abbr> moves about the Sun, its orbit may occasionally bring it to where it can be observed from Earth, but sometimes that window of opportunity may only be a few days. A lunar eclipse might allow astronomers to catch faint <abbr>NEO<\/abbr>s during a time when they might otherwise be missed because of a bright full Moon.<\/p>\n<ul>\n<li>Related <em><abbr title=\"University of Hawaii\">UH<\/abbr> News<\/em> story: <a href=\"https:\/\/www.hawaii.edu\/news\/2021\/05\/28\/ifa-super-blood-moon-broadcast\/\"><abbr>IfA<\/abbr>s\u2019s Super Blood Moon broadcast nets gazers world wide<\/a>, May 28, 2021<\/li>\n<\/ul>\n<p>On May 26, astronomers raced against a brief 60-minute window during the eclipse to search for faint <abbr>NEO<\/abbr>s. They pinpointed three to the northwest of the eclipsed Moon. One of them, an asteroid about the size of 1&#189; football fields, hadn\u2019t been seen since 2001. The Near-Earth asteroid, 2001 <abbr>MY<\/abbr>7, does not pose a threat to Earth, according to <abbr>UH<\/abbr> astronomers.<\/p>\n<p>&ldquo;It only comes close to the Sun once every 5 years, when it becomes bright enough to see, making this kind of asteroid very difficult to discover,&rdquo; said <abbr>UH<\/abbr> <a href=\"http:\/\/www.ifa.hawaii.edu\/\">Institute for Astronomy<\/a> (<abbr>IfA<\/abbr>s) Astronomer <strong>Richard Wainscoat<\/strong>. &ldquo;This object reminds us that some near-Earth objects can be very difficult to find\u2014for example, objects that come close to Earth in the daytime sky, and objects with long periods.&rdquo;<\/p>\n<figure id=\"attachment_123398\" aria-describedby=\"caption-attachment-123398\" style=\"width: 300px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2020\/07\/system-astronomy-pan-starrs-300x169.jpg\" alt=\"telescope\" width=\"300\" height=\"169\" class=\"size-medium wp-image-123398\" srcset=\"https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2020\/07\/system-astronomy-pan-starrs-300x169.jpg 300w, https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2020\/07\/system-astronomy-pan-starrs-130x73.jpg 130w, https:\/\/www.hawaii.edu\/news\/wp-content\/uploads\/2020\/07\/system-astronomy-pan-starrs.jpg 676w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-123398\" class=\"wp-caption-text\">Pan-<abbr>STARRS<\/abbr> on Haleakal\u0101. (Photo credit: Rob Ratkowski\/<abbr>PS1SC<\/abbr><\/figcaption><\/figure>\n<p>Pan-STARRS astronomers also saw two new <abbr>NEO<\/abbr>s. The larger object, 2021 <abbr>KM<\/abbr>2, now with additional observations has a well established orbit, and is approximately 450 feet in diameter. It poses no threat to Earth. The other object is smaller and has proven to be more elusive. Astronomers hope that it will be seen again in the next few weeks when the waning Moon lets the sky become darker, so that an accurate orbit can be determined.<\/p>\n<p>The next lunar eclipse visible from <span aria-label=\"Hawaii\">Âé¶¹´«Ã½<\/span> is a partial eclipse on the night of November 18. Pan-STARRS astronomers are planning a similar deep search for <abbr>NEO<\/abbr>s on that night when the full Moon enters the Earth\u2019s shadow.<\/p>\n<p>Pan-STARRS1 is the world leader in finding larger <abbr>NEO<\/abbr>s, and continues to demonstrate the fundamental role <span aria-label=\"Hawaii\">Âé¶¹´«Ã½<\/span> astronomy plays in the nation\u2019s planetary defense program.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pan-STARRS spots three asteroids, one of them, about the size of 1&#189; football fields, which hadn\u2019t been seen since 2001. <\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[34,35,659,1421,9],"class_list":["post-143171","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","tag-astronomy","tag-institute-for-astronomy","tag-maunakea","tag-maunakea-observatories","tag-uh-manoa","entry","has-media"],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/posts\/143171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/comments?post=143171"}],"version-history":[{"count":5,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/posts\/143171\/revisions"}],"predecessor-version":[{"id":143177,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/posts\/143171\/revisions\/143177"}],"wp:attachment":[{"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/media?parent=143171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/categories?post=143171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hawaii.edu\/news\/wp-json\/wp\/v2\/tags?post=143171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}