Viewing archive of Friday, 17 March 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 |
|---|---|---|---|---|---|
| 58 -26 | 1 1 | B8.43 | M1.08 | 5 | 1 |
Sunspot regions
Region 13247 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S24W80 | |
|
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Solar flares on this day | ||||
| C7.2 M1.0 | ||||
Region 13249 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S11W57 | |
|
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Region 13250 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | S18W61 | |
|
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Region 13251 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | S13W36 | |
|
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Region 13252 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N13W35 | |
|
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Region 13254 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 30 | BXO | S25W69 | |
|
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Region 13255 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S05W02 | |
|
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Region 13256 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 | HSX | S21E76 | |
|
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Solar flares on this day | ||||
| C6.4 C6.4 C1.4 C3.0 | ||||
All times in UTC
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 79.3 -6.7 |
| Last 30 days | 92.4 +29.5 |
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