Viewing archive of Friday, 15 March 2013 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 105 -28 | 0 -1 | B5.71 | M1.75 | 3 | 1 |
Sunspot regions
Region 11691 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -3 | 90 -30 | CSO | N12W51 | |
|
||||
Solar flares on this day | ||||
| B6.93 | ||||
Region 11692 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 180 -20 | HSX | N09W03 | |
|
||||
Solar flares on this day | ||||
| M1.74 | ||||
Region 11694 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 -10 | HRX | N17W05 | |
|
||||
Region 11695 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 110 -50 | HAX | N10E18 | |
|
||||
Region 11696 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 -1 | 140 -10 | EAI | N05W22 | |
|
||||
Solar flares on this day | ||||
| C3.23 C1.53 | ||||
Region 11697 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 40 10 | DAO | N16W36 | |
|
||||
Region 11698 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 80 60 | CSO | S19W42 | |
|
||||
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/03/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
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|---|---|
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| Last 30 days | 52.1 -75.8 |