Daily Sunspot Evaluation
Observation Sheet Friday, 23 June 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)
- 52
- Relative number (R)
- 112
- Observer
- SM
- Reading
- all checks consistent
- File
- 19670623.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 11 | 6E | 199 | |||
| 2 | E – 34 | 18 | 31E | 174 | |||
| 3 | C – 13 | -24 | 49E | 156 | |||
| 4 | A – 1 | 15 | 50W | 255 | |||
| 5 | J – 1 | 25 | 25W | 230 | |||
| 6 | A – 1 | 29 | 20W | 225 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.