Viewing archive of Monday, 23 April 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 |
|---|---|---|---|---|---|
| 140 -24 | 0 | C1.16 | M5.77 | 5 | 3 |
Sunspot regions
Region 9429 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 -10 | HSX | N08W45 | |
Region 9431 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -1 | 60 -70 | DAO | S11W15 | |
Solar flares on this day | ||||
| C4.11 | ||||
Region 9432 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -1 | 90 -10 | DAO | N08W34 | |
Region 9433 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 47 12 | 760 -30 | FKI | N17E26 | |
Solar flares on this day | ||||
| M1.44 C6 M1.31 M5.77 C4.63 | ||||
Region 9434 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 -10 | AXX | N17W67 | |
Region 9435 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 -1 | 250 40 | DAO | S20W12 | |
Region 9436 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 100 30 | HSX | S10E59 | |
Region 9437 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 10 | HAX | N10E61 | |
All times in UTC
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| February 2026 | 90.2 -22.4 |
| Last 30 days | 102.4 -15.3 |