Daily Sunspot Evaluation
Observation Sheet Monday, 21 October 1985
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)
- 31
- Relative number (R)
- 61
- Observer
- TS
- Reading
- all checks consistent
- File
- 19851021.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CKO – 11 | 4 | 11E | 29 | 07E | 12 | |
| 2 | CAI – 11 | 7 | 21E | 17 | 19E | 6 | |
| 3 | CAI – 9 | 3 | 24E | 14 | 22E | 6 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.