Daily Sunspot Evaluation
Observation Sheet Saturday, 9 September 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)
- 8
- Number of spots (f)
- 36
- Relative number (R)
- 116
- Observer
- SB
- Reading
- all checks consistent
- File
- 19670909.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 12 | 65E | 189 | |||
| 2 | C – 7 | -23 | 33E | 221 | |||
| 3 | C – 10 | -21 | 25E | 229 | |||
| 4 | J – 3 | -22 | 09W | 263 | |||
| 5 | A – 4 | -22 | 32W | 286 | |||
| 6 | A – 2 | 14 | 52W | 306 | |||
| 7 | J – 2 | 28 | 71W | 325 | |||
| 8 | A – 5 | 22 | 19W | 271 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.