Viewing archive of Thursday, 18 March 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 |
|---|---|---|---|---|---|
| 127 -4 | 1 | B8.43 | M4.79 | 13 | 1 |
Sunspot regions
Region 8484 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -2 | 20 -20 | CSO | S23W34 | |
Region 8485 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 36 -14 | 570 -40 | FAI | N24W52 | |
Solar flares on this day | ||||
| M4.79 C3.14 C7.59 C2.37 C2.93 C2.21 | ||||
Region 8487 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 21 -1 | 180 | ESI | N17W15 | |
Region 8488 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 5 | 40 20 | CSO | S26W04 | |
Region 8489 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 10 -40 | AXX | N14W41 | |
Region 8490 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 | AXX | S20E66 | |
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