Daily Sunspot Evaluation
Observation Sheet Saturday, 15 November 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)
- 5
- Number of spots (f)
- 16
- Relative number (R)
- 66
- Observer
- AT
- Reading
- all checks consistent
- File
- 19691115.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | 15 | 24E | 142 | |||
| 2 | ? – 4 | 7 | 78E | 85 | |||
| 3 | H – 4 | 14 | 70W | 233 | |||
| 4 | H – 2 | 18 | 72W | 235 | |||
| 5 | G – 2 | 22 | 63W | 226 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.