Daily Sunspot Evaluation
Observation Sheet Sunday, 4 August 1968
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)
- 31
- Relative number (R)
- 91
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 5 | 12 | 66E | 155 | |||
| 2 | J – 1 | 7 | 43E | 178 | |||
| 3 | A – 3 | 1 | 29E | 192 | |||
| 4 | D – 6 | -22 | 48W | 269 | |||
| 5 | D – 10 | 15 | 60W | 281 | |||
| 6 | D – 6 | 8 | 62W | 283 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.