Daily Sunspot Evaluation
Observation Sheet Tuesday, 29 July 1975
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)
- 3
- Number of spots (f)
- 14
- Relative number (R)
- 44
- Observer
- GA
- Reading
- all checks consistent
- File
- 19750729.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | 8 | 24W | 67 | 29W | ||
| 2 | G – 7 | 9 | 44W | 87 | 47W | ||
| 3 | A – 1 | 10 | 13W | 56 | 16W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.