Daily Sunspot Evaluation
Observation Sheet Monday, 7 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)
- 5
- Number of spots (f)
- 42
- Relative number (R)
- 92
- Observer
- FA
- Reading
- all checks consistent
- File
- 19741007.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 23 | 8 | 56°E | 280 | 53°E | ||
| 2 | J – 5 | 5 | 32°E | 304 | 29°E | ||
| 3 | B – 6 | -19 | 20°E | 316 | 17°E | ||
| 4 | G – 7 | -6 | 42°W | 18 | 45°W | ||
| 5 | J – 1 | 8 | 47°W | 23 | 50°W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.