Daily Sunspot Evaluation
Observation Sheet Monday, 31 October 1977
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)
- 28
- Relative number (R)
- 78
- Observer
- FA
- Reading
- all checks consistent
- File
- 19771031.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 7 | 20 | 59E | 252 | 59E | ||
| 2 | J – 3 | -23 | 41E | 270 | 41E | ||
| 3 | J – 4 | -20 | 34W | 345 | 34W | ||
| 4 | B – 5 | 20 | 16W | 327 | 16W | ||
| 5 | B – 9 | 29 | 18W | 329 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.