Daily Sunspot Evaluation
Observation Sheet Sunday, 9 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)
- 7
- Number of spots (f)
- 50
- Relative number (R)
- 120
- Observer
- LT
- Reading
- all checks consistent
- File
- 19670709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 19 | 25 | 6E | 348 | |||
| 2 | C – 13 | 19 | 5E | 349 | |||
| 3 | C – 5 | 24 | 40E | 314 | |||
| 4 | ? – 2 | -23 | 69W | 63 | |||
| 5 | B – 4 | 5 | 35W | 29 | |||
| 6 | B – 4 | 14 | 49W | 43 | |||
| 7 | H – 3 | 19 | 60W | 54 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.