Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 October 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)
- 10
- Number of spots (f)
- 68
- Relative number (R)
- 168
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19831012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKO – 16 | 6 | 48W | 134 | 51W | 17.5 | 303 |
| 2 | CAO – 5 | 6 | 27W | 113 | 30W | 4 | 308 |
| 3 | HAX – 4 | 13 | 27W | 113 | 30W | 2 | 304 |
| 4 | DAF – 15 | 21 | 12E | 74 | 09E | 7 | 307 |
| 5 | DAI – 8 | -16 | 64W | 150 | 67W | 9 | 305 |
| 6 | DAO – 12 | -16 | 36W | 122 | 37W | 7.5 | 309 |
| 7 | AXX – 2 | -9 | 10W | 96 | 13W | 1 | 306 |
| 8 | AXX – 1 | -10 | 02W | 86 | 05W | 312 | |
| 9 | HAX – 1 | -13 | 60E | 26 | 57E | 1.5 | 310 |
| 10 | DAO – 4 | -7 | 68E | 18 | 65E | 7 | 311 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.