Daily Sunspot Evaluation
Observation Sheet Saturday, 6 July 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)
- 63
- Relative number (R)
- 113
- Observer
- ED
- Reading
- all checks consistent
- File
- 19740706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 14 | -15 | 03W | 128 | |||
| 2 | J – 1 | -18 | 24W | 149 | |||
| 3 | F – 36 | -15 | 34W | 159 | |||
| 4 | D – 9 | -12 | 48W | 173 | |||
| 5 | ? – 3 | -9 | 79W | 204 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.