{"id":12723,"date":"2016-06-04T18:45:56","date_gmt":"2016-06-04T22:45:56","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=12723"},"modified":"2016-06-04T18:45:56","modified_gmt":"2016-06-04T22:45:56","slug":"the-sun-goes-spotless-as-it-falls-towards-a-minimum","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=12723","title":{"rendered":"The Sun goes spotless as it falls towards a Minimum"},"content":{"rendered":"<p>The Sun has gone spotless as it enters the less active phase of the solar cycle:\u00a0<a href=\"http:\/\/spaceweather.com\/archive.php?view=1&amp;day=04&amp;month=06&amp;year=2016\" target=\"_d\">Vanishing Sunspots &#8211; Spaceweather.com &#8211; June.4.2016<\/a>\u00a0&#8211;<\/p>\n<p style=\"padding-left: 30px;\"><em>Forecasters expect the next Solar Minimum to arrive in 2019-2020. Between now and then, there will be lots of spotless suns. At first, the blank stretches will be measured in days; later in weeks and months. Don&#8217;t expect space weather to grow quiet, however. Solar Minimum brings many interesting changes. For instance, as the extreme ultraviolet output of the sun decreases, the upper atmosphere of Earth cools and collapses. This allows space junk to accumulate around our planet. Also, the heliosphere shrinks, bringing interstellar space closer to Earth. Galactic cosmic rays penetrate the inner solar system with relative ease. Indeed, a <a href=\"http:\/\/news.spaceweather.com\/cosmic-rays-continue-to-intensify\/\">cosmic ray surge<\/a>\u00a0is already underway. Goodbye sunspots, hello deep-space radiation!<\/em><\/p>\n<p><a href=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"12724\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=12724\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1.jpg\" data-orig-size=\"1024,1024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"blanksun[1]\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1.jpg\" class=\"aligncenter wp-image-12724\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1.jpg\" alt=\"blanksun[1]\" width=\"521\" height=\"521\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1.jpg 1024w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1-150x150.jpg 150w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1-300x300.jpg 300w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/06\/blanksun1-768x768.jpg 768w\" sizes=\"auto, (max-width: 521px) 100vw, 521px\" \/><\/a><\/p>\n<p>The average number of sunspots has been dropping steadily for months:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.swpc.noaa.gov\/communities\/space-weather-enthusiasts\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"http:\/\/services.swpc.noaa.gov\/images\/solar-cycle-sunspot-number.gif\" alt=\"ISES Solar Cycle Sunspot Number Progression - NOAA\" width=\"500\" height=\"382\" border=\"0\" \/><\/a><\/p>\n<p>Watch the changing Sun on the\u00a0<a href=\"http:\/\/hobbyspace.com\/Blog\/?page_id=1759\" target=\"_d\">HobbySpace Sun &amp; Space Weather page<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Sun has gone spotless as it enters the less active phase of the solar cycle:\u00a0Vanishing Sunspots &#8211; Spaceweather.com &#8211; June.4.2016\u00a0&#8211; Forecasters expect the next Solar Minimum to arrive in 2019-2020. Between now and then, there will be lots of spotless suns. At first, the blank stretches will be measured in days; later in weeks &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=12723\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">The Sun goes spotless as it falls towards a Minimum<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[31],"tags":[],"class_list":["post-12723","post","type-post","status-publish","format-standard","hentry","category-solar-science"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-3jd","jetpack-related-posts":[{"id":15065,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15065","url_meta":{"origin":12723,"position":0},"title":"No spots but the Sun is stormy nonetheless","author":"TopSpacer","date":"October 15, 2017","format":false,"excerpt":"The sun has gone spotless for the past seven days:\u00a0Spaceweather.com - Oct.15.2017. Nevertheless, there has continued to be solar eruptions leading to brilliant aurora on earth: NO SUNSPOTS, NO PROBLEM:\u00a0A minor\u00a0G1-class\u00a0geomagnetic storm is underway on\u00a0Oct. 15th. This marks the 5th consecutive day that polar geomagnetic storms have been observed--a remarkable\u2026","rel":"","context":"In &quot;Solar Science&quot;","block_context":{"text":"Solar Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=31"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/10\/hmi2001.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8330,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8330","url_meta":{"origin":12723,"position":1},"title":"The sun goes nearly spotless","author":"TopSpacer","date":"July 17, 2014","format":false,"excerpt":"The sun seems to be\u00a0taking a nap:\u00a0Spaceweather.com - July.16.14 WHERE DID ALL THE SUNSPOTS GO?\u00a0This week, solar activity has sharply declined. There are only two numbered sunpots on the Earth-facing side of the sun, and each is so small you might have trouble finding them. Click to enlarge this July\u2026","rel":"","context":"In &quot;Solar Science&quot;","block_context":{"text":"Solar Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=31"},"img":{"alt_text":"blank_strip[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/07\/blank_strip1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15271,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15271","url_meta":{"origin":12723,"position":2},"title":"Sunspots becoming rarer as cycle heads toward minimum","author":"TopSpacer","date":"December 5, 2017","format":false,"excerpt":"Bob Zimmerman posts his latest report on the sunspot cycle:\u00a0The Sun goes quiet! Sunspot update for November 2017 | Behind The Black\u00a0\u00a0 The past month was the most inactive month for sunspots since the middle of 2009, when the last solar minimum was just ending and the Sun was beginning\u2026","rel":"","context":"In &quot;Solar Science&quot;","block_context":{"text":"Solar Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=31"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/12\/sunspot1712041.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14871,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14871","url_meta":{"origin":12723,"position":3},"title":"Solar science: Two giant solar flares today + Update on the solar cycle","author":"TopSpacer","date":"September 6, 2017","format":false,"excerpt":"A couple of giant flares erupted on the sun today:\u00a0Two Significant Solar Flares Imaged by NASA's SDO | NASA The sun emitted two significant solar flares on the morning of Sept. 6, 2017. The first peaked at 5:10 a.m. EDT and the second, larger flare, peaked at 8:02 a.m. EDT.\u00a0NASA\u2019s\u2026","rel":"","context":"In &quot;Solar Science&quot;","block_context":{"text":"Solar Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=31"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/services.swpc.noaa.gov\/images\/solar-cycle-sunspot-number.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5204,"url":"https:\/\/hobbyspace.com\/Blog\/?p=5204","url_meta":{"origin":12723,"position":4},"title":"The sun got more angry in October","author":"TopSpacer","date":"November 6, 2013","format":false,"excerpt":"Bob Zimmerman gives an update on the state of the sun, which got more active last month, though still subdued compared to recent solar maximums :\u00a0The sun goes boom! - Behind The Black. Be sure to check daily the latest solar and space weather images and data displayed on the\u00a0HobbySpace\u2026","rel":"","context":"In &quot;Science and Technology&quot;","block_context":{"text":"Science and Technology","link":"https:\/\/hobbyspace.com\/Blog\/?cat=9"},"img":{"alt_text":"ISES Solar Cycle Sunspot Number Progression - NOAA","src":"https:\/\/i0.wp.com\/www.swpc.noaa.gov\/SolarCycle\/sunspot.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7113,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7113","url_meta":{"origin":12723,"position":5},"title":"Sunspotter &#8211; citizen solar science","author":"TopSpacer","date":"March 27, 2014","format":false,"excerpt":"Sunspotter\u00a0is a Zooniverse citizen science project in which participants \" help to organize sunspot images in order of complexity to better understand and predict how the Sun's magnetic activity affects us on Earth. The\u00a0Sunspotter blog\u00a0includes interesting items such as this\u00a0Space weather \u2013 a short guide\u00a0and \u00a0The Making of a Magnetogram\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/hobbyspace.com\/Blog\/?cat=22"},"img":{"alt_text":"sunspot_size","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/sunspot_size.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/12723","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12723"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/12723\/revisions"}],"predecessor-version":[{"id":12725,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/12723\/revisions\/12725"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}