Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 December 1967
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)
- 40
- Relative number (R)
- 90
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19671206.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 15 | 11E | 163 | |||
| 2 | H – 1 | 11 | 07E | 167 | |||
| 3 | B – 18 | 25 | 48E | 132 ⚠ | |||
| 4 | J – 1 | 12 | 32E | 142 | |||
| 5 | D – 19 | -17 | 87E | 97 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.