Daily Sunspot Evaluation
Observation Sheet Sunday, 13 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)
- 13
- Relative number (R)
- 43
- Observer
- GT
- Reading
- all checks consistent
- File
- 19771113.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 24 | 05E | 137 | 02E | ||
| 2 | C – 5 | 38 | 62E | 80 | 75E | ||
| 3 | ? – 6 | -23 | 02W | 144 | 05W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.