Daily Sunspot Evaluation
Observation Sheet Monday, 16 September 1968
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)
- 41
- Relative number (R)
- 111
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680916.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 26 | 36E | 336 | |||
| 2 | J – 1 | 23 | 77E | 295 | |||
| 3 | H – 16 | -14 | 09W | 21 | |||
| 4 | B – 2 | -24 | 69W | 81 | |||
| 5 | D – 3 | -17 | 61W | 73 | |||
| 6 | H – 16 | 7 | 10W | 22 | |||
| 7 | A – 1 | 12 | 15W | 27 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.