Daily Sunspot Evaluation
Observation Sheet Saturday, 17 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)
- 4
- Number of spots (f)
- 46
- Relative number (R)
- 86
- Observer
- TK
- Reading
- all checks consistent
- File
- 19921017.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 6 | 7 | 06E | 175 | 04E | 2.5 | 357 |
| 2 | CAI – 12 | 5 | 56E | 125 | 54E | 7 | 367 |
| 3 | HS – 10 | 15 | 75E | 106 | 73E | 8.5 | 365 |
| 4 | DAO – 18 | -18 | 13E | 168 | 11E | 8 | 356 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.