Viewing archive of Monday, 18 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 |
|---|---|---|---|---|
| 135 -34 | 0 -1 | B8.57 | C9.44 | 8 |
Sunspot regions
Region 8728 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 10 -19 | 220 -70 | EAO | N23W40 | |
Solar flares on this day | ||||
| C2.24 | ||||
Region 8729 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -6 | 10 -10 | BXO | N14W41 | |
Region 8731 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 54 -8 | 1220 220 | FKC | N13W19 | |
Solar flares on this day | ||||
| C3.96 | ||||
Region 8732 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 23 4 | 220 10 | EAO | N21W25 | |
Solar flares on this day | ||||
| C2.67 | ||||
Region 8734 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 10 | HSX | N17W09 | |
Region 8735 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -3 | 40 30 | DSO | N18E22 | |
Region 8736 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | HRX | S20E35 | |
All times in UTC
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| Spotless days | |
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