Daily Sunspot Evaluation
Observation Sheet Monday, 4 July 1966
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)
- 3
- Number of spots (f)
- 39
- Relative number (R)
- 69
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19660704.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 4 | 15 | 47W | 265 ⚠ | |||
| 2 | D – 8 | 17 | 62W | 260 | |||
| 3 | D – 27 | 24 | 11W | 209 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.