06/17/2011 | The K7RA Solar Update
The average daily sunspot numbers for the past week declined by more than half, nearly 52 points to 35.1, when compared to the previous week. Sunspot numbers for June 9-15 were 46, 35, 37, 16, 16, 48 and 48, with a mean of 35.1. The 10.7 cm flux was 87.5,
Feature06/25/2009 | Surfin': Finding Missing Sunspots
This week's Surfin' discovers why the Sun's spots are in hiding.