{"id":62835,"date":"2025-05-08T07:05:24","date_gmt":"2025-05-08T11:05:24","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=62835"},"modified":"2025-05-07T21:41:46","modified_gmt":"2025-05-08T01:41:46","slug":"a-new-solar-cycle-wrinkle","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2025\/05\/a-new-solar-cycle-wrinkle\/","title":{"rendered":"A New Solar Cycle Wrinkle"},"content":{"rendered":"

An interesting article caught my attention on spaceweather.com<\/a> concerning new research on what is called the Gleissberg Cycle. Interested? Read on!<\/p>\n

THE COUNTER-INTUITIVE QUIET CONTINUES: <\/strong>Big sunspots usually produce big solar flares. Giant sunspot 4079 is an exception to the rule. All week long, it has been strangely quiet, producing only a handful of puny C-class solar flares<\/a>. If the quiet continues for a few more days, the behemoth sunspot will rotate off the sun’s western limb without having caused any significant space weather. Solar flare alerts:<\/strong> SMS Text<\/a><\/p>\n

THE CENTENNIAL GLEISSBERG CYCLE: <\/strong>If you’ve been enjoying the auroras of Solar Cycle 25<\/a>, we’ve got good news. The next few solar cycles could be even more intense–the result of a little-known phenomenon called the “Centennial Gleissberg Cycle.”<\/p>\n

\"100<\/a><\/p>\n

You’ve probably heard of the 11-year sunspot cycle. The Gleissberg Cycle is a slower modulation, which suppresses sunspot numbers every 80 to 100 years. For the past ~15 years, the sun has been near a low point in this cycle, but this is about to change.<\/p>\n

New research<\/a> published in the journal Space Weather<\/em> suggests that the Gleissberg Cycle is waking up again. If this is true, solar cycles for the next 50 years could become increasingly intense.<\/p>\n

“We have been looking at protons in the South Atlantic Anomaly,” explains the paper’s lead author Kalvyn Adams, an astrophysics student at the University of Colorado. “These are particles from the sun that come unusually close to Earth because our planet’s magnetic shield is weak over the south Atlantic Ocean.”<\/p>\n

\"\"<\/a>
\nAbove: <\/strong>The South Atlantic Anomaly (blue) is a weak spot in Earth’s magnetic field where particles from the sun can come relatively close to Earth [more<\/a>]<\/p><\/blockquote>\n

For more details, go to spaceweather.com<\/a><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

An interesting article caught my attention on spaceweather.com concerning new research on what is called the Gleissberg Cycle. Interested? Read on! THE COUNTER-INTUITIVE QUIET CONTINUES: Big sunspots usually produce big solar flares. Giant sunspot 4079 is an exception to the rule. All week long, it has been strangely quiet, producing only a handful of puny […]<\/p>\n","protected":false},"author":54,"featured_media":62841,"comment_status":"open","ping_status":"closed","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],"tags":[10809,7837],"class_list":["post-62835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-solar-activity","tag-solar-cycle"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/swling.com\/blog\/wp-content\/uploads\/2025\/05\/Sunspots-070723-500LR-2.jpg","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-glt","jetpack-related-posts":[{"id":1170,"url":"https:\/\/swling.com\/blog\/2011\/06\/sunspots-hibernate\/","url_meta":{"origin":62835,"position":0},"title":"Scientists predict sun may ‘hibernate’","author":"Thomas","date":"June 15, 2011","format":false,"excerpt":"News sources are publishing information regarding new scientific research which puts our sunspot cycle into question. How does this affect the average shortwave listener? Periods of high sunspot numbers generally produce excellent DX conditions. In other words, with modest equipment, listeners can hear even weak signals around the world. Amateur\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\/2011\/06\/SunSpots1-300x225.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":40431,"url":"https:\/\/swling.com\/blog\/2019\/11\/one-sunspot-into-solar-cycle-25\/","url_meta":{"origin":62835,"position":1},"title":"One sunspot into Solar Cycle 25","author":"Thomas","date":"November 3, 2019","format":false,"excerpt":"(Source: Spaceweather Archive via Michael Bird) Nov. 1, 2019:\u00a0Breaking a string of 28 spotless days, a new sunspot (AR2750) is emerging in the sun\u2019s southern hemisphere\u2013and it\u2019s a member of the next solar cycle. A picture of the sunspot is inset in this magnetic map of the sun\u2019s surface from\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\/11\/Susnapot-Cycle-25.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/11\/Susnapot-Cycle-25.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/11\/Susnapot-Cycle-25.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":41285,"url":"https:\/\/swling.com\/blog\/2019\/12\/a-new-sunspot-emerges-breaking-40-day-spotless-streak\/","url_meta":{"origin":62835,"position":2},"title":"A new sunspot emerges, breaking 40 day spotless streak","author":"Thomas","date":"December 24, 2019","format":false,"excerpt":"(Source: Spaceweather.com via Michael Bird) A SUNSPOT FROM THE NEXT SOLAR CYCLE: Breaking a string of 40 spotless days, a new sunspot is emerging in the sun's southern hemisphere. It comes from the next solar cycle. The unnumbered spot is inset in this map of solar magnetic fields from NASA's\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\/unnamed-1.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":62835,"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":58617,"url":"https:\/\/swling.com\/blog\/2024\/01\/x5-class-solar-flare-is-the-strongest-of-solar-cycle-25\/","url_meta":{"origin":62835,"position":4},"title":"X5-Class Solar Flare is the strongest of Solar Cycle 25","author":"Thomas","date":"January 1, 2024","format":false,"excerpt":"Many thanks to SWLing Post contributor, Troy Riedel, who shares the following news from Spaceweather.com: GEOMAGNETIC STORM WATCH (G2):\u00a0A CME\u00a0launched into space by yesterday's X5-class solar flare (see below) *does* have an Earth-directed component. According to\u00a0a NASA model, it should strike our planet on Jan. 2nd.\u00a0G2-class geomagnetic storms are possible\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\/2024\/01\/x5_teal_strip.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":58468,"url":"https:\/\/swling.com\/blog\/2023\/12\/x2-8-class-solar-flare-strongest-of-this-solar-cycle\/","url_meta":{"origin":62835,"position":5},"title":"X2.8-Class Solar Flare: Strongest of this solar cycle","author":"Thomas","date":"December 15, 2023","format":false,"excerpt":"Many thanks to SWLing Post Contributor, Troy Riedel, who shares the following news via Spaceweather.com: (UPDATED) STRONGEST FLARE OF THE CURRENT SOLAR CYCLE: Sunspot 3514 erupted on Dec. 14th (1702 UT), producing a strong X2.8-class solar flare. This is the strongest flare of Solar Cycle 25 (so far) and 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\/2023\/12\/lopsidedhalo_dice_opt.gif?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/62835","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\/54"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=62835"}],"version-history":[{"count":3,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/62835\/revisions"}],"predecessor-version":[{"id":62840,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/62835\/revisions\/62840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media\/62841"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=62835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=62835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=62835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}