Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 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)
- 248
- Relative number (R)
- 338
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19781212.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 78 | 22 | 00 | 340 | 01W | ||
| 2 | D – 6 | 26 | 29E | 341 ⚠ | 28E | ||
| 3 | C – 5 | -10 | 38E | 302 | 37E | ||
| 4 | J – 5 | -23 | 69E | 273 | 66E | ||
| 5 | F – 95 | -14 | 41E | 323 ⚠ | 40E | ||
| 6 | D – 27 | -13 | 06W | 346 | 09W | ||
| 7 | H – 7 | -24 | 53W | 33 | 54W | ||
| 8 | H – 24 | -18 | 57W | 37 | 58W | ||
| 9 | J – 1 | 15 | 69W | 48 | 70W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.