Viewing archive of Saturday, 20 January 2001 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C | M | X |
|---|---|---|---|---|---|---|
| 91 -43 | 1 -2 | C1.04 | X1.1 | 7 | 1 | 1 |
Sunspot regions
Region 9308 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 50 20 | CSO | N17W70 | |
Region 9310 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | AXX | N27W15 | |
Region 9311 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -5 | 80 20 | DSO | N04W04 | |
Region 9312 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 20 | BXO | N08E22 | |
Region 9313 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 16 2 | 190 70 | EAO | S07E57 | |
Solar flares on this day | ||||
| M1.76 X1.1 | ||||
Region 9314 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 10 10 | BXO | N17W58 | |
Region 9315 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 30 | CSO | S28E44 | |
Region 9316 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 100 | HSX | S17E75 | |
Region 9317 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 30 | BXO | N08W72 | |
All times in UTC
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/03/28 | M1.3 |
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| April 2026 | 130 +51.8 |
| Last 30 days | 91.6 +20.3 |
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