Viewing archive of Tuesday, 21 September 1999 - 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 | M |
|---|---|---|---|---|---|
| 82 4 | 0 | B8.14 | M1.36 | 3 | 1 |
Sunspot regions
Region 8695 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N21W56 | |
Region 8699 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -5 | 60 -110 | HSX | N24W88 | |
Solar flares on this day | ||||
| C7.43 | ||||
Region 8700 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 -8 | 50 -20 | DSO | N12W19 | |
Region 8704 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -1 | 110 -70 | ESO | S22E28 | |
Solar flares on this day | ||||
| C4 | ||||
Region 8706 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 120 40 | CSO | N20E66 | |
Solar flares on this day | ||||
| M1.36 | ||||
All times in UTC
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