Daily Sunspot Evaluation
Observation Sheet Friday, 5 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)
- 2
- Number of spots (f)
- 21
- Relative number (R)
- 41
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19971205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EHC – 18 | 21 | 33W | 307 | 35W | 14 | 104 105 |
| 2 | CRO – 3 | 34 | 08W | 282 | 10W | 4 | 106 105 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.