Daily Sunspot Evaluation
Observation Sheet Saturday, 3 September 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)
- 19
- Relative number (R)
- 39
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770903.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | 16 | 15E | 343 | 13E | ||
| 2 | D – 8 | 26 | 43E | 315 | 41E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.