Daily Sunspot Evaluation
Observation Sheet Thursday, 17 November 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)
- 2
- Number of spots (f)
- 15
- Relative number (R)
- 35
- Observer
- HM
- Reading
- all checks consistent
- File
- 19831117.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 9 | -12 | 38W | 6 | 38W | 8 | 327 |
| 2 | CAO – 6 | -14 | 01W | 329 | 01W | 6.5 | 328 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.