Solar minimum continues minimum. Bob Zimmerman, BehindtheBlack.com

Apr 11, 02:23 AM

Photo:A drawing of a sunspot in the Chronicles of John of Worcester.

Original work by John of Worcester. - [1]

A drawing of a sunspot in the Chronicle of John of Worcester.

Permission details

Public domain because of its age.View more

Public Domainview terms

File:ChroniclesofJohnofWorcester.jpg

Created: The author died in 1140 AD so it's from before that.

Solar minimum continues minimum. Bob Zimmerman, BehindtheBlack.com

https://behindtheblack.com/behind-the-black/essays-and-commentaries/sunspot-update-march-2019-an-upcoming-grand-minimum/