Daily Sunspot Evaluation
Observation Sheet Thursday, 23 October 1969
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)
- 46
- Relative number (R)
- 106
- Observer
- SM
- Reading
- all checks consistent
- File
- 19691023.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 5 | 10 | 13E | 90 | |||
| 2 | F – 30 | 11 | 39E | 64 | |||
| 3 | G – 5 | -13 | 43E | 60 | |||
| 4 | A – 1 | -7 | 0 | 103 | |||
| 5 | J – 2 | -29 | 03W | 106 | |||
| 6 | A – 3 | -12 | 39W | 142 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.