Daily Sunspot Evaluation
Observation Sheet Thursday, 22 September 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)
- 2
- Number of spots (f)
- 24
- Relative number (R)
- 44
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770922.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 19 | -23 | 11E | 97 | 08E | ||
| 2 | C – 5 | 22 | 40W | 148 | 43W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.