Daily Sunspot Evaluation
Observation Sheet Saturday, 12 August 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)
- 6
- Number of spots (f)
- 88
- Relative number (R)
- 148
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | -17 | 13E | 252 | |||
| 2 | B – 11 | -24 | 02E | 263 | |||
| 3 | H – 12 | -32 | 04W | 269 | |||
| 4 | B – 7 | -19 | 63W | 328 | |||
| 5 | E – 14 | 25 | 65W | 339 ⚠ | |||
| 6 | E – 43 | 22 | 33W | 298 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.