Viewing archive of Monday, 20 September 2004 - Sunspot regions
It appears that the image of the visible solar disk for this day in history is missing.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 59 17 | 1 1 | B2.71 | C3 | 2 |
Sunspot regions
Region 10672 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -9 | 70 -30 | CRO | N05W58 | |
Region 10673 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 1 | 300 -60 | ESO | S13E22 | |
All times in UTC
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| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.1 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 114 -43.9 |