Daily Sunspot Evaluation
Observation Sheet Friday, 23 August 1974
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)
- 3
- Number of spots (f)
- 16
- Relative number (R)
- 46
- Observer
- DK
- Reading
- all checks consistent
- File
- 19740823.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 2 | 29E | 182 | |||
| 2 | J – 1 | -14 | 46W | 259 | |||
| 3 | B – 12 | -11 | 50W | 261 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.