Daily Sunspot Evaluation
Observation Sheet Thursday, 4 August 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)
- 7
- Number of spots (f)
- 40
- Relative number (R)
- 110
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19660804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 8 | 21 | 20E | 134 ⚠ | |||
| 2 | B – 6 | 17 | 23E | 125 | |||
| 3 | J – 1 | 20 | 57W | 205 | |||
| 4 | H – 10 | 20 | 30W | 178 | |||
| 5 | J – 1 | 30 | 54W | 202 | |||
| 6 | H – 1 | 38 | 31W | 179 | |||
| 7 | C – 13 | 27 | 11W | 159 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.