Daily Sunspot Evaluation
Observation Sheet Monday, 17 October 1983
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)
- 32
- Relative number (R)
- 72
- Observer
- TS
- Reading
- all checks consistent
- File
- 19831017.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKC – 24 | 20 | 54W | 74 | 57W | 11 | 307 |
| 2 | AXX – 1 | -12 | 04W | 24 | 07W | 1 | 310 |
| 3 | CSI – 6 | -6 | 06E | 14 | 03E | 7.5 | 311 |
| 4 | AXX – 1 | -46 | 50E | 330 | 47E | 0.5 | 314 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.