Daily Sunspot Evaluation
Observation Sheet Tuesday, 15 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)
- 33
- Relative number (R)
- 93
- Observer
- AE
- Reading
- all checks consistent
- File
- 19670815.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 7 | 19 | 4E | 221 | |||
| 2 | H – 1 | -32 | 55E | 170 | |||
| 3 | H – 8 | -17 | 24W | 249 | |||
| 4 | H – 4 | -23 | 44W | 269 | |||
| 5 | ? – 6 | 19 | 76W | 301 | |||
| 6 | B – 7 | 25 | 23W | 248 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.