Daily Sunspot Evaluation
Observation Sheet Sunday, 6 October 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)
- 7
- Number of spots (f)
- 26
- Relative number (R)
- 96
- Observer
- HM
- Reading
- all checks consistent
- File
- 19741006.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 10 | 9 | 66E | 281 | |||
| 2 | J – 2 | 5 | 43E | 304 | |||
| 3 | A – 1 | -12 | 50E | 297 | |||
| 4 | B – 4 | -20 | 30E | 317 | |||
| 5 | G – 5 | -5 | 31W | 18 | |||
| 6 | A – 2 | -11 | 72W | 59 | |||
| 7 | J – 2 | 10 | 36W | 23 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.