Viewing archive of Saturday, 22 April 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 |
|---|---|---|---|---|
| 87 -27 | 0 -1 | B7.78 | C4.86 | 4 |
Sunspot regions
Region 13275 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N13W99 | |
|
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Region 13279 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 3 | 20 10 | CRO | S22W64 | |
|
||||
Solar flares on this day | ||||
| C4.8 C2.0 | ||||
Region 13281 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -4 | 10 -20 | CRO | S21W49 | |
|
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Region 13282 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -7 | 320 -90 | FKI | N11W56 | |
|
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Region 13283 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -6 | 10 -10 | BXO | S22W28 | |
|
||||
Solar flares on this day | ||||
| C2.0 | ||||
Region 13284 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S00W01 | |
|
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Region 13285 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -1 | 180 40 | DAO | S17E55 | |
|
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Solar flares on this day | ||||
| C1.2 | ||||
All times in UTC
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Latest alerts
Tuesday, 22 April 2025
11:09 UTC - Solar flare
Moderate M1.35 flare
10:39 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.03)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 121 -13.2 |
| Last 30 days | 113 -27.2 |