Viewing archive of Friday, 18 December 1998 - 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 | X |
|---|---|---|---|---|---|
| 76 -17 | 0 -1 | C1.43 | M1.2 | 9 | 1 |
Sunspot regions
Region 8406 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 30 10 | CSO | S26W59 | |
Region 8408 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -6 | 180 -40 | DSO | S17W65 | |
Region 8409 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 16 -10 | 190 -60 | ESI | S28W50 | |
Solar flares on this day | ||||
| C2.31 C4.21 | ||||
Region 8410 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 50 -10 | HAX | N24W04 | |
Region 8414 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -3 | 0 -10 | AXX | N25E34 | |
Region 8415 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 10 | BXO | N19E72 | |
Solar flares on this day | ||||
| C4.57 C3.6 C4.94 C4.97 C1.96 C2.97 X1.15 | ||||
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| Spotless days | |
|---|---|
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