Daily Sunspot Evaluation
Observation Sheet Thursday, 14 August 1969
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)
- 25
- Relative number (R)
- 85
- Observer
- TY
- Reading
- all checks consistent
- File
- 19690814.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 10 | 25E | 286 | |||
| 2 | D – 9 | -15 | 59E | 252 | |||
| 3 | B – 9 | -14 | 08E | 303 | |||
| 4 | ? – 1 | -31 | 57W | 8 | |||
| 5 | A – 2 | 15 | 34W | 345 | |||
| 6 | A – 1 | 13 | 06W | 317 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.