Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 December 1976
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)
- 3
- Number of spots (f)
- 15
- Relative number (R)
- 45
- Observer
- FA
- Reading
- all checks consistent
- File
- 19761215.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 11 | 71°E | 147 | 68°E | ||
| 2 | H – 10 | -27 | 17W | 235 | 19W | ||
| 3 | H – 4 | 5 | 50W | 268 | 52W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.