Daily Sunspot Evaluation
Observation Sheet Friday, 26 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)
- 32
- Relative number (R)
- 82
- Observer
- SK
- Reading
- all checks consistent
- File
- 19740726.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | -12 | 46E | 175 | |||
| 2 | J – 1 | -18 | 57E | 164 | |||
| 3 | H – 16 | -10 | 11E | 210 | |||
| 4 | D – 10 | -16 | 27W | 248 | |||
| 5 | ? – 1 | -13 | 77W | 298 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.