The K7RA Solar Update
d’édition.
Sunspot activity rose again this week, with the average daily sunspot number up nearly 18 points to 83, but the geomagnetic indices — both planetary and mid-latitude — were each down slightly. The high sunspot number for the week was 121, recorded on Wednesday, August 31. The last time the sunspot number was higher was on July 31 and August 1, at 128 and 130. Sunspot numbers for August 25-31 …
Allez vers le site source pour lire l’intégralité du sujet
