Viewing archive of Sunday, 31 January 1999 - 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 30 | 2 2 | B5.14 | C1.26 | 4 |
Sunspot regions
Region 8446 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -5 | 160 140 | DSO | N17W59 | |
Solar flares on this day | ||||
| C1 | ||||
Region 8449 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 10 | BXO | N27W74 | |
Solar flares on this day | ||||
| C1.12 | ||||
All times in UTC
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Changelog/Featurelog 163AR 13932 592024/12/23 CME by AR 13932's M8.9 flare. 6Incoming & Unnumbered Active Regions 1366Growth of Cycle 25 779
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