Daily Sunspot Evaluation
Observation Sheet Saturday, 23 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)
- 7
- Number of spots (f)
- 33
- Relative number (R)
- 103
- Observer
- LT
- Reading
- all checks consistent
- File
- 19660723.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 23 | 14E | 293 | |||
| 2 | C – 20 | 38 | 38E | 269 | |||
| 3 | A – 2 | 20 | 25E | 282 | |||
| 4 | H – 2 | 22 | 49E | 258 | |||
| 5 | J – 2 | -22 | 12W | 319 | |||
| 6 | A – 1 | -8 | 30W | 337 | |||
| 7 | J – 5 | 27 | 55W | 362 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.