Viewing archive of Wednesday, 27 October 2021 - 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 |
|---|---|---|---|---|
| 91 -4 | 0 -1 | B5.81 | C8.51 | 17 |
Sunspot regions
Region 12886 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 90 -10 | HSX | S20W54 | |
|
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Region 12887 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 26 6 | 250 -120 | DHI | S27E05 | |
|
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Solar flares on this day | ||||
| C1.0 C2.9 C3.1 C8.6 C1.5 B7.4 C2.8 C1.1 C1.6 C1.1 | ||||
Region 12888 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S12E26 | |
|
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Region 12889 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 40 20 | BXO | S23E31 | |
|
||||
Solar flares on this day | ||||
| C1.7 C2.3 | ||||
Region 12890 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -1 | 30 -10 | BXO | S19W39 | |
|
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Region 12891 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 250 | CAO | N19E66 | |
|
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Solar flares on this day | ||||
| C2.1 C1.4 C2.2 C2.2 | ||||
All times in UTC
Latest news
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| Last 30 days | 90 +16.9 |
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