Daily Sunspot Evaluation
Observation Sheet Tuesday, 23 November 1971
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)
- 35
- Relative number (R)
- 105
- Observer
- SK
- Reading
- all checks consistent
- File
- 19711123.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 14 | 22E | 118 | |||
| 2 | A – 3 | 9 | 21E | 119 | |||
| 3 | H – 10 | 15 | 62E | 78 | |||
| 4 | J – 4 | -9 | 52E | 88 | |||
| 5 | B – 6 | -17 | 55E | 85 | |||
| 6 | H – 1 | -6 | 07E | 133 | |||
| 7 | G – 9 | -14 | 55W | 195 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.