01.12.2025
The southern sunspot group, which approached Earth two days ago, has reached its largest size this year. The total area of the complex, measured at the beginning of the day, is 1,600 units, which is currently about 60% of the size of the largest sunspot groups of the 21st century (approximately 2,800 units), but already a third larger than the previous annual record of 1,200 units, achieved in May 2025 (region No. 4079).