Daily Sunspot Evaluation
Observation Sheet Saturday, 26 December 1970
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)
- 36
- Relative number (R)
- 106
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | 12 | 21E | 184 | |||
| 2 | H – 1 | 15 | 51E | 154 | |||
| 3 | C – 4 | 11 | 43E | 162 | |||
| 4 | A – 4 | -23 | 23E | 182 | |||
| 5 | C – 14 | -9 | 22W | 227 | |||
| 6 | A – 6 | 27 | 30W | 235 | |||
| 7 | A – 3 | 19 | 10W | 215 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.