Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 December 1966
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)
- 5
- Number of spots (f)
- 25
- Relative number (R)
- 75
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19661227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 21 | 26E | 15 ⚠ | |||
| 2 | C – 10 | -28 | 22E | 8 ⚠ | |||
| 3 | H – 2 | -24 | 15E | 20 | |||
| 4 | H – 5 | 28 | 47W | 82 | |||
| 5 | H – 5 | 28 | 41W | 76 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.