Daily Sunspot Evaluation
Observation Sheet Sunday, 28 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)
- 22
- Relative number (R)
- 72
- Observer
- HM
- Reading
- all checks consistent
- File
- 19830828.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 4 | -1 | 32W | 352 | 35W | 3. | 268 |
| 2 | DAE – 12 | -11 | 23W | 343 | 26W | 6. | 258 |
| 3 | AXX – 2 | -8 | 09E | 311 | 06E | 1 | 269 |
| 4 | AAX – 3 | -18 | 27E | 293 | 24E | 1.5 | 269 |
| 5 | HSX – 1 | -10 | 35E | 285 | 32E | 1.5 | 265 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.