Viewing archive of Saturday, 20 May 2023 - 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 |
|---|---|---|---|---|---|
| 138 -17 | 1 -1 | C2.3 | M8.96 | 19 | 8 |
Sunspot regions
Region 13302 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 -20 | HSX | N19W70 | |
|
||||
Region 13305 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 -3 | 250 10 | DKI | N09W68 | |
|
||||
Solar flares on this day | ||||
| C2.7 C5.1 C5.1 C6.4 | ||||
Region 13307 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S09W34 | |
|
||||
Region 13308 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -7 | 50 -20 | CAO | N09W56 | |
|
||||
Region 13309 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S18W91 | |
|
||||
Region 13310 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -2 | 310 -10 | CKO | S20E32 | |
|
||||
Region 13312 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 30 -10 | CAI | S24E50 | |
|
||||
Solar flares on this day | ||||
| C2.9 C3.2 C6.9 M1.1 C3.6 | ||||
Region 13313 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 20 | HSX | N22E61 | |
|
||||
Region 13314 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 | BXO | N15E36 | |
|
||||
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 160.6 +68.8 |
| Last 30 days | 108.7 +12.8 |