Viewing archive of Tuesday, 21 December 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 |
|---|---|---|---|---|---|
| 129 -20 | 0 | C1.57 | M1.61 | 7 | 1 |
Sunspot regions
Region 8798 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 43 2 | 460 -40 | EAI | S14W21 | |
Solar flares on this day | ||||
| C2.94 | ||||
Region 8803 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -5 | 30 -40 | DSO | S13W31 | |
Solar flares on this day | ||||
| C4.91 | ||||
Region 8804 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 290 40 | CHO | S20E29 | |
Region 8806 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 28 8 | 1040 150 | FKI | N19E37 | |
Solar flares on this day | ||||
| C4.64 C2.14 M1.61 | ||||
Region 8807 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 2 | 40 | CAO | N10E44 | |
Solar flares on this day | ||||
| C1.94 | ||||
Region 8808 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 0 | AXX | S18W08 | |
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