Viewing archive of Tuesday, 1 September 1998 - 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 | M |
|---|---|---|---|---|---|
| 129 -4 | 0 | C2.14 | C7.1 | 9 | 1 |
Sunspot regions
Region 8307 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 90 -50 | DSO | N32W77 | |
Region 8319 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 26 -1 | 740 170 | EKO | N19W54 | |
Solar flares on this day | ||||
| C4.97 C5.54 | ||||
Region 8321 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 -10 | AXX | N31E25 | |
Region 8322 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 | 90 20 | DAO | N23W40 | |
Region 8323 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 29 20 | 890 110 | EKC | S22E42 | |
Solar flares on this day | ||||
| C4.49 M2.16 C4.01 C2.96 C7.1 C6.36 | ||||
Region 8324 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 0 -10 | AXX | N23W24 | |
All times in UTC
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| Last M-flare | 2026/04/09 | M1.0 |
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
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| Monthly mean Sunspot Number | |
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| Last 30 days | 97.5 +41.1 |
This day in history*
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