Daily Sunspot Evaluation
Observation Sheet Monday, 29 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)
- 4
- Number of spots (f)
- 25
- Relative number (R)
- 65
- Observer
- ED
- Reading
- all checks consistent
- File
- 19740729.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 6 | -15 | 14E | 167 | |||
| 2 | A – 4 | -10 | 08E | 173 | |||
| 3 | B – 14 | -9 | 30W | 211 | |||
| 4 | J – 1 | -15 | 74W | 255 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.