Daily Sunspot Evaluation
Observation Sheet Thursday, 25 August 1977
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)
- 2
- Number of spots (f)
- 14
- Relative number (R)
- 34
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770825.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 11 | -25 | 20E | 98 | 17E | ||
| 2 | A – 3 | 20 | 46W | 164 | 49W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.