Daily Sunspot Evaluation
Observation Sheet Wednesday, 2 October 1991
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)
- 6
- Number of spots (f)
- 158
- Relative number (R)
- 218
- Observer
- TK
- Reading
- all checks consistent
- File
- 19911002.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAI – 25 | 18 | 18°E | 153 | 15°E | 11° | 545 |
| 2 | AX – 1 | 12 | 49°E | 122 | 46°E | — | 550 |
| 3 | CAO – 4 | -8 | 29°W | 200 | 32°W | 11° | 536 |
| 4 | FKC – 89 | -12 | 10°W | 181 | 13°W | 19° | 539 |
| 5 | EKI – 38 | -20 | 01°W | 172 | 04°W | 14°5 | 540 |
| 6 | AR – 1 | -1 | 58°E | 113 | 55°E | 0°5 | 551 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.