Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 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)
- 4
- Number of spots (f)
- 14
- Relative number (R)
- 54
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19660719.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 34 | 56E | 303 | |||
| 2 | G – 7 | -24 | 43E | 316 | |||
| 3 | J – 1 | 23 | 53W | 59 ⚠ | |||
| 4 | H – 5 | 26 | 01W | 0 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.