Viewing archive of Thursday, 28 October 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 |
|---|---|---|---|---|
| 196 3 | 1 | C1.43 | C2.51 | 2 |
Sunspot regions
Region 8737 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -4 | 140 -220 | HSX | S13W89 | |
Region 8738 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 90 80 | CSO | N17W67 | |
Region 8739 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 42 -20 | 650 -150 | FKC | S12W23 | |
Solar flares on this day | ||||
| C2.51 | ||||
Region 8741 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 19 8 | 190 50 | EAO | S25W03 | |
Region 8742 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 1 | 480 | EKI | N08E29 | |
Region 8743 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -5 | 20 -30 | DAO | S14W07 | |
Region 8744 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 10 10 | BXO | N09E16 | |
Region 8745 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 150 -20 | HSX | S14E54 | |
Region 8746 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | BXO | S15E28 | |
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