Viewing archive of Wednesday, 17 February 1999 - Sunspot regions
It appears that the image of the visible solar disk for this day in history is missing.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 135 -41 | 0 -2 | C1.03 | C8.24 | 6 |
Sunspot regions
Region 8456 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 30 | BXO | N22W49 | |
Region 8457 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 24 4 | 550 -50 | EKI | N14W30 | |
Region 8458 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 13 -12 | 610 -30 | DKI | S22W23 | |
Solar flares on this day | ||||
| C1.73 | ||||
Region 8459 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -2 | 90 | DAO | S30W57 | |
Region 8460 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 20 -30 | CSO | S18W10 | |
Region 8462 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 -2 | 150 20 | EAO | N18W20 | |
Solar flares on this day | ||||
| C1.77 | ||||
Region 8463 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 70 -10 | HSX | S17E06 | |
Region 8464 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 1 | 80 -10 | CSO | N19E15 | |
Region 8466 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 | AXX | S23E59 | |
Region 8467 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 | HSX | N16E65 | |
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