Viewing archive of Sunday, 21 December 1997 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 30 3 | 0 -1 | B2.71 | C9.27 | 6 |
Sunspot regions
Region 8123 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 70 | DSO | N18W20 | |
Region 8124 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | S22E78 | |
Solar flares on this day | ||||
| B6.24 | ||||
All times in UTC
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Strong far side CME 332Unspecified geomagnetic activity 1750Incoming & Unnumbered Active Regions 1352Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments and prominences 595
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| Last M-flare | 2024/12/22 | M1.0 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
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