Daily Sunspot Evaluation
Observation Sheet Saturday, 18 November 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)
- 10
- Number of spots (f)
- 89
- Relative number (R)
- 189
- Observer
- LT
- Reading
- all checks consistent
- File
- 19671118.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 8 | 20 | 7E | 44 | |||
| 2 | F – 32 | 10 | 11E | 40 | |||
| 3 | B – 14 | 19 | 27E | 24 | |||
| 4 | B – 6 | 19 | 46E | 5 | |||
| 5 | ? – 1 | 20 | 85E | 326 | |||
| 6 | A – 1 | 8 | 22E | 29 | |||
| 7 | C – 6 | -24 | 47W | 98 | |||
| 8 | H – 8 | 13 | 41W | 92 | |||
| 9 | B – 2 | 16 | 52W | 103 | |||
| 10 | C – 11 | 10 | 24W | 75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.