{"id":42715,"date":"2020-04-08T07:07:00","date_gmt":"2020-04-08T11:07:00","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=42715"},"modified":"2020-04-08T07:07:00","modified_gmt":"2020-04-08T11:07:00","slug":"solar-minimum-deep-deeper-and-even-deeper","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2020\/04\/solar-minimum-deep-deeper-and-even-deeper\/","title":{"rendered":"Solar Minimum: Deep, Deeper…and even Deeper?"},"content":{"rendered":"\r\n

\"\"<\/a><\/p>\r\n

Solar Minimum is DEEP and appears to be continuing.\u00a0 Observer Franky Dubois from Belgium – who posts for the Solar Section of A.L.P.O. – Assoc. of Lunar & Planetary Observers (http:\/\/alpo-astronomy.org\/<\/a>) has fully observed three complete Solar Cycles over the past 38-years and he’s graphed the Sunsport R Number – defined as R = K (10g + s), where g is the number of sunspot groups and s is the total number of distinct spots.\u00a0<\/p>\r\n

This is what he posted yesterday on the A.L.P.O. Solar Message Group:<\/p>\r\n\r\n\r\n\r\n\r\n\r\n

Minimum cycle 21: 11.4 April 19[8]6<\/span><\/p>\r\n\r\n\r\n\r\n

Minimum cycle 22: 10.4 May 1996 <\/span><\/p>\r\n\r\n\r\n\r\n

Minimum cycle 23: 2.88 November 2008<\/span><\/p>\r\n\r\n\r\n\r\n

Status of cycle 24 thus far: 1.6<\/span><\/p>\r\n\r\n\r\n\r\n

Many experts in December (2019) speculated we had reached “Solar Minimum” (error factor of +\/- 6-months).\u00a0 Well, it’s 5-months later and we’ve only seen a couple of next cycle [reversed polarized areas] sunspots\/small groups – most of which died-out very quickly and did not sustain a full transit across the observable disc of the sun.\u00a0 We’ve seen no real<\/em> evidence – yet – that we’re on the other side or up-side of Minimum.\u00a0 As an amateur\/hobbyist astronomer & Solar Observer myself, I’ve seldom taken the time to set-up my gear & observe (even in wavelengths other than visible).<\/p>\r\n\r\n\r\n\r\n

It’s been discussed here and elsewhere before, but looking at the last 53-years of data there has been a very, very sharp decline in Solar Maximums [and Minimums] sunspot numbers.<\/p>\r\n\r\n\r\n\r\n

Guest Post by Troy Riedel<\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"

Solar Minimum is DEEP and appears to be continuing.\u00a0 Observer Franky Dubois from Belgium – who posts for the Solar Section of A.L.P.O. – Assoc. of Lunar & Planetary Observers (http:\/\/alpo-astronomy.org\/) has fully observed three complete Solar Cycles over the past 38-years and he’s graphed the Sunsport R Number – defined as R = K […]<\/p>\n","protected":false},"author":73,"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":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,810],"tags":[413,414,4107,411,4581],"class_list":["post-42715","post","type-post","status-publish","format-standard","hentry","category-news","category-space-weather","tag-solar-cycle-24","tag-solar-cycle-25","tag-space-weather","tag-sunspots","tag-troy-riedel"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-b6X","jetpack-related-posts":[{"id":45455,"url":"https:\/\/swling.com\/blog\/2020\/09\/nasa-video-the-solar-cycle-as-seen-from-space\/","url_meta":{"origin":42715,"position":0},"title":"NASA Video: The Solar Cycle as seen from space","author":"Thomas","date":"September 20, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Dave (K4SV), who shares this video courtesy of NASA Goddard: https:\/\/youtu.be\/Z0uIcLZ5rh8 The Sun is stirring from its latest slumber. As sunspots and flares, signs of a new solar cycle, bubble from the Sun\u2019s surface, scientists are anticipating a flurry of solar activity over the\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/09\/sun-solar-cycle-flare-e1600522905875.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/09\/sun-solar-cycle-flare-e1600522905875.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/09\/sun-solar-cycle-flare-e1600522905875.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2020\/09\/sun-solar-cycle-flare-e1600522905875.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":30763,"url":"https:\/\/swling.com\/blog\/2018\/02\/solar-minimum-a-relative-large-sunspot-makes-appearance\/","url_meta":{"origin":42715,"position":1},"title":"Solar Minimum: A “relatively large” sunspot makes appearance","author":"Thomas","date":"February 6, 2018","format":false,"excerpt":"(Source: Southgate ARC) With Solar Minimum right around the corner, sunspot counts are at an almost 10-year low. So it came as a surprise yesterday when a relatively large sunspot emerged near the sun's eastern limb. AR2699\u00a0has a primary dark core larger than Earth with many smaller magnetic condensations trailing\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"Sunspots","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2018\/02\/Sunspot.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":41218,"url":"https:\/\/swling.com\/blog\/2019\/12\/lack-of-sunspots-breaks-a-space-age-record\/","url_meta":{"origin":42715,"position":2},"title":"Lack of Sunspots Breaks a Space Age Record","author":"Troy Riedel","date":"December 16, 2019","format":false,"excerpt":"Another [sun] spotless day on the sun. Spaceweather.com reports that today we surpassed the largest number of spotless days (270) of the previous 2008 Solar Minimum cycle. The current spotless streak stands at 33 days and is quite possibly on its way to surpass the previous longest streak of this\u2026","rel":"","context":"In "Space Weather"","block_context":{"text":"Space Weather","link":"https:\/\/swling.com\/blog\/category\/space-weather\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Sun-Spotless-300x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":41116,"url":"https:\/\/swling.com\/blog\/2019\/12\/spotless-sun-about-to-set-record\/","url_meta":{"origin":42715,"position":3},"title":"Spotless sun about to set record","author":"Thomas","date":"December 9, 2019","format":false,"excerpt":"(Source: SpaceWeather.com via Michael Bird) ONE WEEK FROM A SPACE AGE RECORD: 2019 is about to set a Space Age record. So far this year, the sun has been blank (no sunspots) for 261 days, including the last 24 days in a row. If the streak continues for only 7\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Sun-Spotless.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":36830,"url":"https:\/\/swling.com\/blog\/2019\/04\/noaa-nasa-panel-publishes-solar-cycle-25-preliminary-forecast\/","url_meta":{"origin":42715,"position":4},"title":"NOAA\/NASA panel publishes Solar Cycle 25 Preliminary Forecast","author":"Thomas","date":"April 7, 2019","format":false,"excerpt":"(Source: NOAA via Michael Bird) The NOAA\/NASA co-chaired international panel to forecast Solar Cycle 25 released a preliminary forecast for Solar Cycle 25 on April 5, 2019. The consensus: Cycle 25 will be similar in size to cycle 24. It is expected that sunspot maximum will occur no earlier than\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/04\/SolarCycle25-Preliminary-Forecast.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/04\/SolarCycle25-Preliminary-Forecast.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/04\/SolarCycle25-Preliminary-Forecast.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/04\/SolarCycle25-Preliminary-Forecast.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":38367,"url":"https:\/\/swling.com\/blog\/2019\/07\/grand-solar-minimum-may-lie-ahead-according-to-an-article-in-nature\/","url_meta":{"origin":42715,"position":5},"title":"Grand Solar Minimum may lie ahead according to an article in Nature","author":"Thomas","date":"July 2, 2019","format":false,"excerpt":"(Source: ARRL News) A\u00a0juried research paper\u00a0in\u00a0Nature, \u201cOscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale,\u201d suggests that a \u201cgrand solar minimum\u201d \u2014 similar to the legendary \u201cMaunder Minimum\u201d \u2014 is approaching, starting as early as next year and lasting for three solar cycles.\u00a0That would\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Sun-Solar-Flare-CME-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Sun-Solar-Flare-CME-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Sun-Solar-Flare-CME-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/06\/Sun-Solar-Flare-CME-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/42715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=42715"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/42715\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=42715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=42715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=42715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}