Daily Sunspot Evaluation
Observation Sheet Monday, 14 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)
- 21
- Relative number (R)
- 51
- Observer
- FA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19750714.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | -8 | 47E | 165 ⚠ | 74E | ||
| 2 | ? – 2 | -11 | 26E | 216 | 23E | ||
| 3 | E – 16 | 5 | 58W | 300 | 61W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.