Daily Sunspot Evaluation
Observation Sheet Friday, 4 August 1967
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)
- 7
- Number of spots (f)
- 35
- Relative number (R)
- 105
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 5 | 20 | 75E | 205 ⚠ | |||
| 2 | C – 12 | -28 | 17W | 27 | |||
| 3 | H – 4 | 12 | 40W | 56 ⚠ | |||
| 4 | ? – 3 | 15 | 74W | 80 ⚠ | |||
| 5 | H – 1 | 17 | 61W | 72 | |||
| 6 | ? – 6 | 28 | 77W | 87 | |||
| 7 | H – 4 | 20 | 30W | 40 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.