Daily Sunspot Evaluation
Observation Sheet Sunday, 1 June 1969
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)
- 12
- Relative number (R)
- 52
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690601.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 6 | -11 | 36E | 174 | |||
| 2 | J – 2 | -15 | 31E | 179 | |||
| 3 | A – 1 | 3 | 06W | 216 | |||
| 4 | G – 3 | 7 | 02W | 212 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.