Daily Sunspot Evaluation
Observation Sheet Saturday, 11 August 1984
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)
- 19
- Relative number (R)
- 39
- Observer
- HG
- Reading
- all checks consistent
- File
- 19840811.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 2 | 14 | 12W | 45 | 14W | 0.25 | 247 |
| 2 | DAO – 17 | 7 | 18W | 51 | 20W | 8 | 247 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.