Viewing archive of Sunday, 17 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 |
|---|---|---|---|---|
| 169 -20 | 1 | C1.04 | C5.56 | 9 |
Sunspot regions
Region 8728 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 29 9 | 290 -20 | EAO | N23W26 | |
Region 8729 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 1 | 20 | BXO | N13W25 | |
Region 8731 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 62 35 | 1000 150 | FKC | N12W03 | |
Region 8732 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 19 7 | 210 40 | EAO | N20W12 | |
Region 8734 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 0 -10 | AXX | N17E08 | |
Region 8735 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 | 10 | BXO | N18E40 | |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
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