Daily Sunspot Evaluation
Observation Sheet Tuesday, 11 July 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)
- 4
- Number of spots (f)
- 25
- Relative number (R)
- 65
- Observer
- SM
- Reading
- all checks consistent
- File
- 19670711.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 23 | 9E | 319 | |||
| 2 | H – 1 | -14 | 54E | 274 | |||
| 3 | H – 3 | 17 | 22W | 350 | |||
| 4 | C – 16 | 24 | 19W | 347 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.