Daily Sunspot Evaluation
Observation Sheet Saturday, 14 September 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)
- 38
- Relative number (R)
- 78
- Observer
- ED
- Reading
- all checks consistent
- File
- 19740914.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 21 | 8 | 14E | 266 | |||
| 2 | J – 1 | -16 | 26E | 254 | |||
| 3 | C – 14 | -12 | 13E | 267 | |||
| 4 | A – 2 | -4 | 68W | 348 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.