Daily Sunspot Evaluation
Observation Sheet Saturday, 14 August 1971
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)
- 19
- Relative number (R)
- 79
- Observer
- FA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19710814.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 14 | 42E | 353 | |||
| 2 | ? – 1 | 12 | 79E | 316 | |||
| 3 | B – 5 | -12 | 55W | 30 ⚠ | |||
| 4 | H – 4 | -8 | 64W | 99 | |||
| 5 | B – 5 | 14 | 04W | 39 | |||
| 6 | A – 1 | 22 | 07W | 42 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.