Daily Sunspot Evaluation
Observation Sheet Sunday, 29 June 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)
- 2
- Number of spots (f)
- 10
- Relative number (R)
- 30
- Observer
- GT
- Reading
- all checks consistent
- File
- 19750629.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 7 | 6 | 22E | 59 | 19E | ||
| 2 | ? – 3 | -11 | 74W | 155 | 77W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.