Daily Sunspot Evaluation
Observation Sheet Saturday, 12 November 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)
- 3
- Number of spots (f)
- 12
- Relative number (R)
- 42
- Observer
- FA
- Reading
- all checks consistent
- File
- 19771112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 24 | 17E | 139 | 16E | ||
| 2 | ? – 3 | 39 | 73E | 80 | 32E | ||
| 3 | ? – 4 | -23 | 09E | 145 | 08E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.