Daily Sunspot Evaluation
Observation Sheet Saturday, 9 August 1980
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)
- 58
- Relative number (R)
- 128
- Observer
- OG
- Reading
- all checks consistent
- File
- 19800809.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSE – 11 | 19 | 04W | 268 | 08W | 12 | |
| 2 | CAI – 10 | 11 | 03E | 261 | 01W | 5 | |
| 3 | HJX – 1 | 19 | 31E | 233 | 27E | 1.5 | |
| 4 | BXO – 4 | -21 | 47W | 311 | 51W | 4 | |
| 5 | DAC – 22 | -6 | 30W | 294 | 34W | 9 | |
| 6 | AXX – 2 | -12 | 10W | 274 | 14W | - | |
| 7 | HAX – 8 | -26 | 28E | 238 | 24E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.