Daily Sunspot Evaluation
Observation Sheet Sunday, 9 June 1974
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)
- 5
- Number of spots (f)
- 45
- Relative number (R)
- 95
- Observer
- ED
- Reading
- all checks consistent
- File
- 19740609.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 13 | 4 | 65E | 58 | |||
| 2 | A – 4 | -14 | 19W | 142 | |||
| 3 | A – 1 | -15 | 36W | 157 | |||
| 4 | C – 7 | -14 | 45W | 168 | |||
| 5 | D – 20 | 4 | 05W | 128 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.