Daily Sunspot Evaluation
Observation Sheet Wednesday, 21 October 1992
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)
- 7
- Number of spots (f)
- 70
- Relative number (R)
- 140
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19921021.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ESC – 34 | 5 | 01E | 128 | 06W | 12 | 363 |
| 2 | CSO – 3 | 14 | 20E | 109 | 18E | 4.5 | 365 |
| 3 | BXO – 9 | -18 | 38W | 167 | 40W | 8 | 356 |
| 4 | AX – 1 | -4 | 06W | 135 | 08W | - | 373 |
| 5 | CKI – 11 | -11 | 33E | 96 | 31E | 9 | 362 |
| 6 | BXI – 11 | -13 | 44E | 85 | 42E | 3.5 | 371 |
| 7 | Z – 1 | -10 | 82E | 47 | 80E | - | 372 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.