Daily Sunspot Evaluation
Observation Sheet Saturday, 28 October 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)
- 12
- Number of spots (f)
- 121
- Relative number (R)
- 241
- Observer
- LT
- Reading
- all checks consistent
- File
- 19671028.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 12 | 19 | 6E | 322 | |||
| 2 | D – 11 | 20 | 25E | 303 | |||
| 3 | ? – 2 | 17 | 80E | 248 | |||
| 4 | H – 1 | 15 | 60E | 268 | |||
| 5 | ? – 4 | -20 | 77E | 251 | |||
| 6 | D – 6 | -27 | 50E | 278 | |||
| 7 | F – 47 | 10 | 66W | 34 | |||
| 8 | A – 3 | 11 | 44W | 12 | |||
| 9 | C – 22 | 20 | 25W | 353 | |||
| 10 | J – 4 | 21 | 14W | 342 | |||
| 11 | J – 1 | 11 | 3W | 331 | |||
| 12 | A – 8 | 17 | 4W | 332 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.