No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 10, 1999. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8436 | S30 | E64 | 01 | 0010 | ALPHA | Jan 16, 1999 | Jan 23, 1999 | Feb 6, 1999 |
| № 8434 | S27 | E22 | 03 | 0010 | BETA | Jan 13, 1999 | Jan 20, 1999 | Feb 3, 1999 |
| № 8433 | S28 | W18 | 07 | 0010 | BETA | Jan 10, 1999 | Jan 17, 1999 | Jan 31, 1999 |
| № 8431 | S28 | E06 | 06 | 0040 | BETA | Jan 11, 1999 | Jan 19, 1999 | Feb 2, 1999 |
| № 8426 | N14 | W64 | 03 | 0090 | BETA | Jan 6, 1999 | Jan 13, 1999 | Jan 27, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to January 1999. The gray background is the average SSN index.
