Daily Sunspot Evaluation
Observation Sheet Friday, 7 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)
- 31
- Relative number (R)
- 81
- Observer
- FA
- Reading
- all checks consistent
- File
- 19740607.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 4 | 4 | 23E | 126 | |||
| 2 | A – 1 | -17 | 07E | 142 | |||
| 3 | B – 11 | -14 | 11W | 160 | |||
| 4 | C – 14 | -14 | 19W | 169 | |||
| 5 | A – 1 | -8 | 62W | 211 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.