Daily Sunspot Evaluation
Observation Sheet Sunday, 30 July 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)
- 227
- Relative number (R)
- 287
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670730.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 27 | 28 | 3E | 68 ⚠ | |||
| 2 | C – 15 | 20 | 38E | 39 | |||
| 3 | C – 17 | 12 | 27E | 50 | |||
| 4 | J – 4 | -23 | 51E | 26 | |||
| 5 | F – 34 | 16 | 7W | 84 | |||
| 6 | F – 130 | 27 | 21W | 38 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.