Daily Sunspot Evaluation
Observation Sheet Monday, 19 December 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)
- 23
- Relative number (R)
- 43
- Observer
- TS
- Reading
- counts consistent, some coordinates doubtful
- File
- 19831219.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 2 | 2 | 10W | 339 ⚠ | 11W | 2 | 334 |
| 2 | DAC – 21 | -10 | 03E | 264 ⚠ | 02E | 11 | 339 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.