Viewing archive of Saturday, 20 April 2024 - 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 |
|---|---|---|---|---|
| 240 -3 | 0 -3 | C1.71 | C7.6 | 12 |
Sunspot regions
Region 13635 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 | AXX | N19W88 | |
|
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Region 13636 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 -10 | CRO | S21W51 | |
|
||||
Solar flares on this day | ||||
| C3.9 | ||||
Region 13637 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 5 | 10 | BXO | S10W30 | |
|
||||
Region 13638 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -1 | 70 10 | CAI | S16W21 | |
|
||||
Solar flares on this day | ||||
| C4.8 C3.7 C3.2 | ||||
Region 13639 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 19 | 240 -60 | EAC | N29W11 | |
|
||||
Solar flares on this day | ||||
| C3.0 | ||||
Region 13641 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 20 10 | HRX | N16W59 | |
|
||||
Region 13643 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -6 | 90 -40 | CRO | S13W06 | |
|
||||
Solar flares on this day | ||||
| C2.6 | ||||
Region 13644 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 140 20 | DSO | N12E19 | |
|
||||
Region 13645 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 2 | 240 30 | DAI | S08W19 | |
|
||||
Solar flares on this day | ||||
| C2.8 C4.9 C7.5 C4.3 C4.9 | ||||
Region 13646 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 10 -10 | BXO | N35E09 | |
|
||||
Region 13647 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 1 | 200 40 | DAC | S13W15 | |
|
||||
Region 13648 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 | AXX | N18E12 | |
|
||||
Region 13649 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -7 | 20 | AXX | N17W35 | |
|
||||
Region 13650 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 7 | 120 90 | CAI | S11E05 | |
|
||||
Region 13651 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 | AXX | N13E12 | |
|
||||
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| 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 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |