Daily Sunspot Evaluation
Observation Sheet Monday, 22 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)
- 16
- Relative number (R)
- 56
- Observer
- ED
- Reading
- counts consistent, some coordinates doubtful
- File
- 19740722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | -10 | 64E | 203 ⚠ | |||
| 2 | D – 12 | -14 | 28E | 245 | |||
| 3 | J – 1 | -13 | 24W | 297 | |||
| 4 | G – 2 | -11 | 68W | 341 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.