Viewing archive of Thursday, 17 October 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 | M |
|---|---|---|---|---|---|
| 146 11 | 1 1 | C1.54 | M2.44 | 8 | 2 |
Sunspot regions
Region 13852 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 2 | 190 -60 | CAO | S11W65 | |
|
||||
Solar flares on this day | ||||
| M2.4 C2.5 | ||||
Region 13854 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 16 -9 | 300 | EHI | S11W60 | |
|
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Region 13855 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -3 | 20 | CRO | N15W90 | |
|
||||
Solar flares on this day | ||||
| C3.8 | ||||
Region 13856 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -6 | 190 40 | DAC | N09W23 | |
|
||||
Solar flares on this day | ||||
| M1.0 C3.9 C2.6 | ||||
Region 13857 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 130 30 | DAO | S03E31 | |
|
||||
Region 13858 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 2 | 10 -10 | BXO | S13E22 | |
|
||||
Region 13859 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 -15 | 110 50 | DAO | S10W01 | |
|
||||
Region 13860 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 70 | DAI | S05E22 | |
|
||||
Solar flares on this day | ||||
| C6.6 C3.2 C5.4 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.1 -4.9 |
| Last 30 days | 122.3 +12.7 |