Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 December 1978
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)
- 9
- Number of spots (f)
- 51
- Relative number (R)
- 141
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19781226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 6 | 13 | 33E | 124 | 31E | 13 | |
| 2 | D – 6 | -15 | 65E | 92 | 63E | 10 | |
| 3 | D – 8 | -28 | 58E | 99 | 56E | 11 | |
| 4 | A – 1 | -11 | 03E | 154 | 01E | ||
| 5 | C – 10 | -26 | 02E | 155 | 00 | 10 | |
| 6 | A – 1 | -19 | 29W | 186 | 31W | ||
| 7 | H – 2 | 11 | 59W | 216 | 61W | ||
| 8 | D – 9 | 19 | 19W | 176 | 21W | ||
| 9 | D – 8 | 13 | 10W | 167 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.