Daily Sunspot Evaluation
Observation Sheet Tuesday, 20 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)
- 5
- Number of spots (f)
- 54
- Relative number (R)
- 104
- Observer
- TA
- Reading
- all checks consistent
- File
- 19921020.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKC – 29 | 5 | 14E | 127 | 12E | 10 | 367 |
| 2 | HS – 1 | 14 | 32E | 109 | 30E | 1.5 | 365 |
| 3 | CAO – 8 | -19 | 24W | 165 | 26W | 6.5 | 356 |
| 4 | HK – 3 | -11 | 45E | 96 | 43E | 4.5 | 368 |
| 5 | BXI – 13 | -13 | 56E | 85 | 54E | 4.5 | 371 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.