Daily Sunspot Evaluation
Observation Sheet Friday, 2 September 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)
- 15
- Relative number (R)
- 65
- Observer
- HM
- Reading
- all checks consistent
- File
- 19830902.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 6 | 9 | 31E | 223 | 28E | 4 | 274 |
| 2 | HAX – 3 | 11 | 43E | 211 | 40E | 2 | 271 |
| 3 | DAO – 4 | -6 | 77W | 331 | 80W | 11 | 272 |
| 4 | HSX – 1 | -7 | 32W | 286 | 35W | 2 | 265 |
| 5 | AXX – 1 | -10 | 58E | 196 | 55E | - | 273 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.