Patrick P.A. Geryl Posted September 16, 2020 Share Posted September 16, 2020 (edited) NASA finally stated that Solar Cycle 25 started on December 2019. However, they predicted in December 2019 it would start in April 2020! In November 2019 we already knew it would start at the LATEST in January 2020... Our article A formula for the start of a new sunspot cycle was published by Astrophysics and Space Science. So the prediction panel clearly failed! The Belgian astronomers explained it better: http://sidc.oma.be/silso/node/166 This transition in terms of number of active regions falls in October 2019 = > This is our primary article. The dominance switched to groups of the new cycle in November 2019 => This is our 365 days smoothed average https://www.researchgate.net/publication/342548883_Solar_Cycle_25_Started_on_November_17_2019_with_365_Days_Smoothing More can be found on the website of Jan Alvestad. Also the link to our paper and the 2 other papers on ResearchGate: http://www.solen.info/solar/ http://solarresearch.info/ Edited September 16, 2020 by Patrick Geryl fout new = knew Link to comment Share on other sites More sharing options...
Greg Posted September 19, 2020 Share Posted September 19, 2020 Valentina zharkova is the only one that makes sense. 1 3 1 Link to comment Share on other sites More sharing options...
wesfieldmike Posted September 30, 2020 Share Posted September 30, 2020 Well the Belgian astronomers didn't expect an almost blank September 2020 I am guessing. No sign yet of a pick up in spots, just the opposite. Link to comment Share on other sites More sharing options...
3gMike Posted September 30, 2020 Share Posted September 30, 2020 They would not be surprised. We are talking about an eleven year cycle so sunspot activity will ramp up slowly. Take a look at the data on this page https://www.spaceweatherlive.com/en/solar-activity/solar-cycle to get a better understanding. Under the Space Weather facts banner, note that the trend over 365 days is indicating fewer spotless days (green arrow). 2 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now