Daily Sunspot Evaluation
Observation Sheet Sunday, 6 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)
- 18
- Relative number (R)
- 48
- Observer
- GA
- Reading
- all checks consistent
- File
- 19750706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 10 | 5 | 51E | 297 | 48E | ||
| 2 | A – 6 | -8 | 31E | 317 | 28E | ||
| 3 | ? – 2 | 9 | 75W | 63 | 78W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.