Viewing archive of Sunday, 18 October 2015 - 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 |
|---|---|---|---|---|
| 81 -2 | 1 | B7.29 | C2.7 | 3 |
Sunspot regions
Region 12431 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 20 | CSO | S18W19 | |
|
||||
Region 12432 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -1 | 10 | BXO | S21W38 | |
|
||||
Region 12434 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 20 -2 | 260 110 | DKI | S10E20 | |
|
||||
Region 12435 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 10 | HAX | S15E60 | |
|
||||
Region 12436 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 80 | DAI | N09E71 | |
|
||||
Solar flares on this day | ||||
| C2.15 C1.93 | ||||
All times in UTC
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| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 166 -0.4 |
| Last 30 days | 164 +16.8 |