{"id":3353,"date":"2018-12-17T13:24:29","date_gmt":"2018-12-17T20:24:29","guid":{"rendered":"https:\/\/nau.edu\/astronomy-and-planetary-science\/?p=3353"},"modified":"2019-11-05T13:26:00","modified_gmt":"2019-11-05T20:26:00","slug":"its-the-solar-systems-most-distant-object-astronomers-named-it-farout-the-new-york-times","status":"publish","type":"post","link":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/its-the-solar-systems-most-distant-object-astronomers-named-it-farout-the-new-york-times\/","title":{"rendered":"It\u2019s the Solar System\u2019s Most Distant Object. Astronomers Named It Farout. &#8211; The New York Times"},"content":{"rendered":"<div id=\"story\">\n<p>&nbsp;<\/p>\n<div class=\"css-1wm0p4l\">\n<header class=\"css-llk6mt euiyums4\">\n<p id=\"article-summary\" class=\"css-1ifw933 e1wiw3jv0\">Orbiting 11 billion miles from the sun, this tiny world offers additional clues in the search for the proposed Planet Nine.<\/p>\n<div class=\"css-79elbk\" data-testid=\"photoviewer-wrapper\">\n<div class=\"css-1a48zt4 ehw59r15\" data-testid=\"photoviewer-children\">\n<figure class=\"sizeMedium layoutHorizontal css-1ox9jel\" role=\"group\" aria-label=\"media\">\n<div class=\"css-bsn42l\"><img decoding=\"async\" class=\"css-11cwn6f\" src=\"https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT1\/merlin_148261578_41771794-af9b-4172-b80f-e6d8d5155c71-articleLarge.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" sizes=\"((min-width: 600px) and (max-width: 1004px)) 84vw, (min-width: 1005px) 60vw, 100vw\" srcset=\"https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT1\/merlin_148261578_41771794-af9b-4172-b80f-e6d8d5155c71-articleLarge.jpg?quality=90&amp;auto=webp 600w,https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT1\/merlin_148261578_41771794-af9b-4172-b80f-e6d8d5155c71-jumbo.jpg?quality=90&amp;auto=webp 1024w,https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT1\/merlin_148261578_41771794-af9b-4172-b80f-e6d8d5155c71-superJumbo.jpg?quality=90&amp;auto=webp 2048w\" alt=\"An artist\u2019s rendering of 2018 VG18, nicknamed \u201cFarout,\u201d which is more than three times as far out from the sun as Pluto.\" \/><\/div><figcaption class=\"css-17ai7jg emkp2hg0\"><span class=\"css-16f3y1r e13ogyst0\" aria-hidden=\"true\">An artist\u2019s rendering of 2018 VG18, nicknamed \u201cFarout,\u201d which is more than three times as far out from the sun as Pluto.<\/span><span class=\"emkp2hg2 css-1nwzsjy e1z0qqy90\"><span class=\"css-1ly73wi e1tej78p0\">Credit&#8230;<\/span>Roberto Molar Candanosa\/Carnegie Institution for Science<\/span><\/figcaption><\/figure>\n<\/div>\n<\/div>\n<div class=\"css-18e8msd epjyd6m0\">\n<div class=\"css-vp77d3 epjyd6m2\">\n<div class=\"css-hus3qt ey68jwv0\" aria-hidden=\"true\"><a class=\"css-uwwqev\" href=\"https:\/\/www.nytimes.com\/by\/kenneth-chang\"><img decoding=\"async\" class=\"css-1rjmmt7 ey68jwv2\" title=\"Kenneth Chang\" src=\"https:\/\/static01.nyt.com\/images\/2018\/02\/16\/multimedia\/author-kenneth-chang\/author-kenneth-chang-thumbLarge.jpg\" alt=\"Kenneth Chang\" \/><\/a><\/div>\n<\/div>\n<\/div>\n<\/header>\n<\/div>\n<section class=\"meteredContent css-1i2y565\">\n<div class=\"css-1fanzo5 StoryBodyCompanionColumn\">\n<div class=\"css-53u6y8\">\n<p class=\"css-exrw3m evys1bk0\">Astronomers have discovered a far-out world circling the sun.<\/p>\n<p class=\"css-exrw3m evys1bk0\">How far out? It\u2019s so far out that the discoverers nicknamed it \u201cFarout.\u201d All they can see is a pinkish dot of light in the night sky, but that is enough to infer that they are looking at a 300-mile ice ball orbiting more than 11 billion miles from the sun \u2014 more than three times as far out as Pluto, and the farthest object ever observed within the solar system.<\/p>\n<p class=\"css-exrw3m evys1bk0\">I t is the latest revelation in a distant region that was once expected to be empty, and studying its trajectory may help point to an as-yet-unseen ninth planet circling the sun far beyond <a class=\"css-1g7m0tk\" title=\"\" href=\"https:\/\/www.nytimes.com\/2019\/02\/20\/science\/neptune-moon-hippocamp.html?module=inline\">Neptune<\/a>.<\/p>\n<p class=\"css-exrw3m evys1bk0\">On Monday, the International Astronomical Union\u2019s Minor Planet Center announced the discovery and gave this object the designation 2018 VG18.<\/p>\n<p class=\"css-exrw3m evys1bk0\">\u201cLast month, we came across it moving very, very slow,\u201d said Scott S. Sheppard of the Carnegie Institution for Science, one of the discoverers of VG18. \u201cImmediately we knew it was an interesting object.\u201d<\/p>\n<\/div>\n<aside class=\"css-o6xoe7\" aria-label=\"companion column\" aria-hidden=\"false\"><\/aside>\n<\/div>\n<div class=\"css-1fanzo5 StoryBodyCompanionColumn\">\n<div class=\"css-53u6y8\">\n<p class=\"css-exrw3m evys1bk0\"><strong class=\"css-8qgvsz ebyp5n10\"><em class=\"css-2fg4z9 e1gzwzxm0\">[<\/em><\/strong><a class=\"css-1g7m0tk\" title=\"\" href=\"https:\/\/www.nytimes.com\/interactive\/2018\/science\/astronomy-space-calendar.html\"><em class=\"css-2fg4z9 e1gzwzxm0\">Sign up to get reminders for space and astronomy events on your calendar<\/em><\/a><strong class=\"css-8qgvsz ebyp5n10\"><em class=\"css-2fg4z9 e1gzwzxm0\">.]<\/em><\/strong><\/p>\n<p class=\"css-exrw3m evys1bk0\">The sun\u2019s gravity decreases with distance. More distant worlds move slowly and take longer to complete an orbit than closer ones. A languid, dim speck of light showed up in images taken on Nov. 10 by the Japanese Subaru 8-meter telescope located atop Mauna Kea in Hawaii. Follow-up observations at Las Campanas Observatory in Chile this month confirmed the discovery.<\/p>\n<p class=\"css-exrw3m evys1bk0\">Planetary scientists often use the distance from the sun to the Earth \u2014 defined as an astronomical unit, or 93 million miles \u2014 as a yardstick for measuring the solar system. Neptune is 30 astronomical units away, or 2.8 billion miles, and Pluto, currently on the outward leg of its orbit, is 34.5 astronomical units, or 3.2 billion miles from the sun.<\/p>\n<div class=\"css-79elbk\" data-testid=\"photoviewer-wrapper\">\n<div class=\"css-1a48zt4 ehw59r15\" data-testid=\"photoviewer-children\">\n<figure class=\"css-13fysuj e1g7ppur0\" role=\"group\" aria-label=\"media\">\n<div class=\"css-zgakxe erfvjey0\"><span class=\"css-1ly73wi e1tej78p0\">Image<\/span><img decoding=\"async\" class=\"css-1m50asq\" src=\"https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT2\/merlin_148261590_b7653f3c-99f6-4798-aa79-37caa11bb07a-articleLarge.jpg?quality=75&amp;auto=webp&amp;disable=upscale\" sizes=\"50vw\" srcset=\"https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT2\/merlin_148261590_b7653f3c-99f6-4798-aa79-37caa11bb07a-articleLarge.jpg?quality=90&amp;auto=webp 600w,https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT2\/merlin_148261590_b7653f3c-99f6-4798-aa79-37caa11bb07a-jumbo.jpg?quality=90&amp;auto=webp 525w,https:\/\/static01.nyt.com\/images\/2018\/12\/18\/science\/18FAROUT2\/merlin_148261590_b7653f3c-99f6-4798-aa79-37caa11bb07a-superJumbo.jpg?quality=90&amp;auto=webp 1050w\" alt=\"Farout was observed by the Subaru Telescope, on Mauna Kea Observatory in Hawaii, on Nov. 10.In the hour between exposures, the object moved relative to the background stars and galaxies.\" \/><\/div><figcaption class=\"css-1e7005o e1xdpqjp0\"><span class=\"css-16f3y1r e13ogyst0\" aria-hidden=\"true\">Farout was observed by the Subaru Telescope, on Mauna Kea Observatory in Hawaii, on Nov. 10.In the hour between exposures, the object moved relative to the background stars and galaxies.<\/span><span class=\"css-vuqh7u e1z0qqy90\"><span class=\"css-1ly73wi e1tej78p0\">Credit&#8230;<\/span>Scott S. Sheppard and David Tholen\/Carnegie Institution for Science<\/span><\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p class=\"css-exrw3m evys1bk0\">Pluto was once regarded as the outer edge of the solar system. But starting in 1992, astronomers discovered a multitude of other icy worlds beyond Neptune, a region now known as the Kuiper belt. The Kuiper belt ends at a distance of about 50 astronomical units, and the space beyond that was thought to be largely empty.<\/p>\n<p class=\"css-exrw3m evys1bk0\">But astronomers are now discovering objects like VG18 in this region, and they are yet sure how to explain how all of them got there.<\/p>\n<\/div>\n<aside class=\"css-o6xoe7\" aria-label=\"companion column\" aria-hidden=\"false\"><\/aside>\n<\/div>\n<div class=\"css-1fanzo5 StoryBodyCompanionColumn\">\n<div class=\"css-53u6y8\">\n<p class=\"css-exrw3m evys1bk0\">VG18 is 120 to 130 astronomical units from the sun. It is the first solar system object ever spotted at a distance of more than 100 astronomical units. (Other objects are known to have orbits that swing much farther out than 100 astronomical units, but currently are closer.)<\/p>\n<p class=\"css-exrw3m evys1bk0\">Astronomers do not yet have a good sense of VG18\u2019s orbit \u2014 whether it is elliptical and zooms inward near Neptune, or if it is more circular and always stays far away. That information, which may require a few years of additional observations, will tell whether it fits with <a class=\"css-1g7m0tk\" title=\"\" href=\"https:\/\/www.nytimes.com\/2016\/01\/21\/science\/space\/ninth-planet-solar-system-beyond-pluto.html?module=inline\">a prediction of a distant planet larger than Earth but smaller than Neptune<\/a>.<\/p>\n<p class=\"css-exrw3m evys1bk0\">So far, they can report that VG18 has a pinkish hue and, assuming it is moderately dark, guess that is about 300 miles wide. One trip around the sun likely takes at least 1,000 years. If VG18 is indeed that large, it would likely be massive enough for gravity to pull it into a round shape and fulfill the definition of a \u201cdwarf planet,\u201d the same category that includes the asteroid Ceres and the former planet Pluto.<\/p>\n<p class=\"css-exrw3m evys1bk0\">Dr. Sheppard and his colleagues, as well as other astronomers, are surveying the sky for the hypothesized giant planet, often called Planet Nine. So far their searches have turned up only intriguing clues. In October, Dr. Sheppard and his colleagues <a class=\"css-1g7m0tk\" title=\"\" href=\"https:\/\/www.nytimes.com\/2018\/10\/02\/science\/goblin-planet-nine.html?module=inline\">reported the discovery of a world that was distant, albeit not as distant as VG18<\/a>. They nicknamed it Goblin, because Halloween was approaching, and its orbit provided further evidence that Planet Nine may indeed exist.<\/p>\n<p class=\"css-exrw3m evys1bk0\">VG18 lies close to the limit of what current telescopes can detect. But it likely is not the last discovery, to be made in those nether regions Dr. Sheppard said: \u201cIf it&#8217;s further out, we&#8217;ll name it Way, Way Out or something.\u201d<\/p>\n<\/div>\n<aside class=\"css-o6xoe7\" aria-label=\"companion column\" aria-hidden=\"false\"><\/aside>\n<\/div>\n<\/section>\n<\/div>\n<p>&nbsp;<\/p>\n<p>Source: <a href=\"https:\/\/www.nytimes.com\/2018\/12\/17\/science\/farout-most-distant-solar-system.html\" target=\"_blank\" pf-nom-item-id=\"2765\">It\u2019s the Solar System\u2019s Most Distant Object. Astronomers Named It Farout. &#8211; The New York Times<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Orbiting 11 billion miles from the sun, this tiny world offers additional clues in the search for the proposed Planet Nine. An artist\u2019s rendering of 2018 VG18, nicknamed \u201cFarout,\u201d which is more than three times as far out from the sun as Pluto.Credit&#8230;Roberto Molar Candanosa\/Carnegie Institution for Science Astronomers have discovered a far-out world [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[2,187],"tags":[],"class_list":["post-3353","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-astronomy-and-planetary-science"],"_links":{"self":[{"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/posts\/3353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/users\/84"}],"replies":[{"embeddable":true,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/comments?post=3353"}],"version-history":[{"count":2,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/posts\/3353\/revisions"}],"predecessor-version":[{"id":3355,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/posts\/3353\/revisions\/3355"}],"wp:attachment":[{"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/media?parent=3353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/categories?post=3353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/in.nau.edu\/department-astronomy-planetary-science\/wp-json\/wp\/v2\/tags?post=3353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}