Daily Sunspot Evaluation
Observation Sheet Saturday, 27 December 1997
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)
- 29
- Relative number (R)
- 59
- Observer
- MB
- Reading
- all checks consistent
- File
- 19971227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CRO – 3 | 27 | 47W | 31 | 49W | 3 | 114 |
| 2 | HH – 3 | 20 | 37E | 307 | 35E | 3 | 116 115 |
| 3 | EAI – 23 | -23 | 04W | 348 | 06W | 11.5 | 113 114 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.