Daily Sunspot Evaluation
Observation Sheet Friday, 19 August 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)
- 5
- Number of spots (f)
- 12
- Relative number (R)
- 62
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BAI – 6 | 8 | 29W | 108.3 | 8W | 2 | 246 |
| 2 | HAX – 1 | 19 | 07W | 86.1 | 1W | 1 | 249 |
| 3 | HAX – 3 | 12 | 63E | 16.5 | 9E | 205 | 255 |
| 4 | ? – 1 | 243 | |||||
| 5 | ? – 1 | 244 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.