Daily Sunspot Evaluation
Observation Sheet Tuesday, 11 October 1988
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)
- 12
- Number of spots (f)
- 81
- Relative number (R)
- 201
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19881011.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKC – 15 | 24 | 24W | 129 | 29W | 6 | 260 |
| 2 | BXI – 10 | 27 | 12W | 117 | 15W | 4 | 261 |
| 3 | AB – 1 | 13 | 02W | 107 | 05W | - | 262 |
| 4 | CSO – 6 | 13 | 16E | 89 | 13E | 5 | 264 |
| 5 | ? – 5 | 19 | 68E | 37 | 65E | 5 | 271 |
| 6 | ? – 1 | 20 | 80E | 25 | 77E | 3 | 272 |
| 7 | DKC – 10 | -18 | 52W | 157 | 55W | 6 | 259 |
| 8 | EAI – 19 | -29 | 44W | 149 | 47W | 12 | 263 |
| 9 | BXO – 4 | -16 | 24W | 129 | 27W | 4 | 273 |
| 10 | AX – 1 | -32 | 17W | 122 | 20W | - | 268 |
| 11 | BXI – 7 | -22 | 25E | 80 | 22E | 4 | 270 |
| 12 | HS – 2 | -11 | 41E | 64 | 38E | 1 | 267 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.