Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 October 1980
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 14
- Number of spots (f)
- 135
- Relative number (R)
- 275
- Observer
- ED
- Reading
- counts consistent, some coordinates doubtful
- File
- 19801015.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 22 | 12 | 64W | 163 | 67W | 17 | |
| 2 | DAO – 10 | 13 | 46W | 145 | 49W | 12.5 | |
| 3 | AXX – 1 | 9 | 28W | 127 | 31W | - | |
| 4 | BRI – 12 | 16 | 04E | 75 ⚠ | 01E | 5.5 | |
| 5 | BKI – 5 | 5 | 06E | 73 ⚠ | 03E | 3 | |
| 6 | CJO – 3 | 8 | 39E | 60 | 36E | 5 | |
| 7 | AXX – 1 | 20 | 54E | 45 | 51E | - | |
| 8 | CJO – 4 | -25 | 62W | 161 | 65W | 8 | |
| 9 | HJX – 1 | -31 | 45W | 144 | 48W | 1 | |
| 10 | ARX – 1 | -7 | 40W | 139 | 43W | - | |
| 11 | EKC – 60 | -10 | 21W | 120 | 24W | 12.5 | |
| 12 | HJX – 1 | -21 | 03W | 102 | 06W | 0.5 | |
| 13 | DAI – 13 | -28 | 24E | 75 | 21E | 5.5 | |
| 14 | HAX – 1 | -34 | 55E | 44 | 52E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.