Daily Sunspot Evaluation
Observation Sheet Thursday, 6 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)
- 19
- Relative number (R)
- 69
- Observer
- FA
- Reading
- all checks consistent
- File
- 19771006.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 7 | 81E | 203 | 78E | ||
| 2 | ? – 3 | -22 | 23W | 307 | 26W | ||
| 3 | ? – 2 | 13 | 63W | 347 | 66W | ||
| 4 | D – 9 | 29 | 55W | 339 | 58W | ||
| 5 | ? – 1 | 19 | 17W | 301 | 20W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.