Daily Sunspot Evaluation
Observation Sheet Sunday, 25 September 1966
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)
- 4
- Number of spots (f)
- 101
- Relative number (R)
- 141
- Observer
- HıE
- Reading
- all checks consistent
- File
- 19660925.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 75 | 23 | 23E | 158 | |||
| 2 | A – 1 | -18 | 07W | 188 | |||
| 3 | H – 5 | 7 | 75W | 256 | |||
| 4 | D – 20 | 21 | 55W | 236 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.