Viewing archive of Sunday, 28 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 |
|---|---|---|---|---|---|
| 119 -6 | 0 | B8.32 | M1.01 | 9 | 1 |
Sunspot regions
Region 13310 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 260 | HHX | S20W69 | |
|
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Region 13311 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 1 | 200 20 | EAO | N18W60 | |
|
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Region 13312 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -4 | 10 | AXX | S24W52 | |
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Region 13313 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 80 -20 | HSX | N22W45 | |
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Region 13314 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 160 40 | DAO | N12W71 | |
|
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Solar flares on this day | ||||
| C1.8 | ||||
Region 13315 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 26 -2 | 800 180 | EKC | S17W22 | |
|
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Solar flares on this day | ||||
| C1.3 M1.0 C1.6 C2.0 C1.0 | ||||
Region 13316 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -2 | 30 | DRO | N09E10 | |
|
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Solar flares on this day | ||||
| C1.4 | ||||
All times in UTC
Latest news
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Latest forum messages
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Space weather facts
| Last X-flare | 2026/02/02 | X2.9 |
| Last M-flare | 2026/02/02 | M2.3 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 118.3 +3.5 |