Viewing archive of Sunday, 4 October 2015 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | M |
|---|---|---|---|---|
| 18 -29 | 0 | B4.14 | M1.54 | 1 |
Sunspot regions
Region 12420 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 30 20 | HAX | N14W91 | |
|
||||
Region 12422 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -6 | 270 -210 | DKO | S20W89 | |
|
||||
Solar flares on this day | ||||
| M1.55 | ||||
Region 12427 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -3 | 180 | DAI | N18W30 | |
|
||||
Solar flares on this day | ||||
| B9.93 | ||||
All times in UTC
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| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 115.4 -40.8 |