Viewing archive of Tuesday, 28 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 |
|---|---|---|---|---|---|
| 77 -32 | 0 | C1.09 | M6.5 | 7 | 1 |
Sunspot regions
Region 8804 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 190 -70 | HSX | S18W64 | |
Region 8806 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 48 9 | 810 -90 | FHC | N20W54 | |
Solar flares on this day | ||||
| M6.5 C1.59 C1.47 C4.4 C2.44 | ||||
Region 8809 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 | 40 10 | DAO | N22E27 | |
Region 8810 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 3 | 410 60 | FKO | N38E44 | |
Solar flares on this day | ||||
| C1.38 | ||||
All times in UTC
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| Spotless days | |
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