Viewing archive of Sunday, 31 December 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 | X |
|---|---|---|---|---|---|---|
| 55 7 | 1 1 | C1.18 | X5.01 | 10 | 1 | 1 |
Sunspot regions
Region 13531 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 160 -40 | HSX | S19W77 | |
|
||||
Solar flares on this day | ||||
| C1.2 | ||||
Region 13533 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -3 | 20 -100 | BXO | N15W78 | |
|
||||
Region 13534 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 -2 | 120 -30 | DAO | S12E03 | |
|
||||
Region 13536 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 80 | HAX | N05E75 | |
|
||||
Solar flares on this day | ||||
| C1.8 C2.4 C9.5 C8.2 C5.5 C2.4 C3.8 C4.2 M1.0 X5.01 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |