Daily Sunspot Evaluation
Observation Sheet Saturday, 30 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)
- 9
- Number of spots (f)
- 88
- Relative number (R)
- 178
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19671230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 14 | -13 | 10E | 198 ⚠ | |||
| 2 | J – 1 | -29 | 66E | 151 | |||
| 3 | B – 5 | -15 | 13E | 204 | |||
| 4 | A – 4 | -18 | 16E | 201 | |||
| 5 | C – 22 | -28 | 24E | 193 | |||
| 6 | H – 3 | -22 | 33W | 250 | |||
| 7 | D – 8 | -15 | 28W | 245 | |||
| 8 | F – 29 | -16 | 40W | 257 | |||
| 9 | ? – 2 | -18 | 73W | 230 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.