Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 September 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)
- 13
- Number of spots (f)
- 100
- Relative number (R)
- 230
- Observer
- ED
- Reading
- all checks consistent
- File
- 19800924.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 12 | 5 | 32W | 48 | 35W | 4 | |
| 2 | CJI – 8 | 10 | 31W | 47 | 34W | 5.5 | |
| 3 | EKC – 40 | 18 | 29W | 45 | 32W | 12.5 | |
| 4 | AXX – 1 | 9 | 10E | 6 | 07E | ||
| 5 | BXO – 3 | 18 | 44E | 332 | 41E | 6.5 | |
| 6 | HSX – 2 | 12 | 73E | 303 | 70E | 4 | |
| 7 | EKC – 25 | -33 | 27W | 43 | 30W | 16 | |
| 8 | AXX – 1 | -14 | 16E | 0 | 13E | ||
| 9 | HSX – 1 | -27 | 20E | 356 | 17E | 1.5 | |
| 10 | AXX – 1 | -4 | 27E | 349 | 24E | ||
| 11 | BXO – 2 | -31 | 55E | 321 | 52E | 3 | |
| 12 | ARX – 2 | -5 | 68E | 308 | 65E | 1.5 | |
| 13 | HAX – 2 | -17 | 75E | 301 | 72E | 6.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.