Daily Sunspot Evaluation
Observation Sheet Thursday, 10 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)
- 5
- Number of spots (f)
- 49
- Relative number (R)
- 99
- Observer
- SM
- Reading
- all checks consistent
- File
- 19670810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | JS – 2 | -18 | 42E | 2.50 | |||
| 2 | H – 12 | -22 | 24E | 2.68 | |||
| 3 | B – 6 | -20 | 33W | 3.25 | |||
| 4 | B – 5 | 17 | 55W | 3.47 | |||
| 5 | E – 24 | 19 | 4W | 2.96 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.