Viewing archive of Friday, 22 January 1999 - Sunspot regions
It appears that the image of the visible solar disk for this day in history is missing.
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 141 7 | 1 | C2.57 | M2.14 | 8 | 1 |
Sunspot regions
Region 8437 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 -10 | HSX | N11W77 | |
Region 8439 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 23 -11 | 410 120 | EAC | S23W42 | |
Solar flares on this day | ||||
| C4.54 C3.03 | ||||
Region 8440 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 -14 | 330 30 | FAI | N19W37 | |
Solar flares on this day | ||||
| C6.47 | ||||
Region 8442 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 40 -60 | CSO | N24W69 | |
Region 8443 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 10 | HRX | S16E34 | |
Region 8444 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 5 | 20 20 | CSO | N20W04 | |
Region 8446 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | N14E60 | |
All times in UTC
Latest news
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
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| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 85.2 +8.6 |
This day in history*
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