Daily Sunspot Evaluation
Observation Sheet Thursday, 25 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)
- 7
- Number of spots (f)
- 21
- Relative number (R)
- 91
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830825.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 2 | 53W | 53 | 57W | 05 | 262 |
| 2 | BXO – 4 | 13 | 21W | 21 | 25W | 4 | 263 |
| 3 | AXX – 2 | 15 | 15W | 15 | 19W | 1 | 259 |
| 4 | AXX – 1 | -11 | 13W | 13 | 17W | 264 | |
| 5 | BXO – 9 | -12 | 18E | 342 | 14E | 3 | 258 |
| 6 | BXO – 3 | -12 | 60E | 300 | 56E | 49 | 261 |
| 7 | ? – 1 | -11 | 77E | 283 | 73E | 3 | 265 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.