Daily Sunspot Evaluation
Observation Sheet Monday, 17 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)
- 6
- Number of spots (f)
- 52
- Relative number (R)
- 112
- Observer
- SK
- Reading
- all checks consistent
- File
- 19670717.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 29 | 18E | 233 | 5646 | ||
| 2 | B – 6 | 9 | 50E | 199 | |||
| 3 | H – 6 | -20 | 41E | 208 | |||
| 4 | E – 30 | -18 | 01E | 248 | |||
| 5 | C – 7 | -19 | 15W | 264 | |||
| 6 | A – 1 | -14 | 22W | 271 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.