Daily Sunspot Evaluation
Observation Sheet Tuesday, 11 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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- FA
- Reading
- all checks consistent
- File
- 19740611.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 18 | 5 | 36E | 60 | |||
| 2 | A – 2 | -12 | 46W | 142 | |||
| 3 | A – 1 | -13 | 74W | 170 | |||
| 4 | J – 5 | -7 | 70W | 164 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.