Daily Sunspot Evaluation
Observation Sheet Thursday, 12 November 1981
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)
- 11
- Number of spots (f)
- 82
- Relative number (R)
- 192
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19811112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 16 | 2 | 16W | 327 | 18W | 10 | |
| 2 | DKC – 27 | 17 | 13W | 324 | 15W | 9 | |
| 3 | CAI – 5 | 13 | 06E | 305 | 04E | 4 | |
| 4 | AXX – 3 | 12 | 15E | 296 | 13E | 25 | |
| 5 | HHX – 4 | 17 | 31E | 280 | 29E | 4.5 | |
| 6 | HAX – 1 | -4 | 56W | 7 | 58W | 2 | |
| 7 | HAX – 3 | -13 | 55W | 6 | 57W | 2.25 | |
| 8 | DKC – 15 | -19 | 22W | 333 | 24W | 10 | |
| 9 | AXX – 1 | -19 | 10W | 321 | 12W | ||
| 10 | AXX – 1 | -12 | 02W | 313 | 04W | ||
| 11 | CAO – 6 | -12 | 34E | 277 | 32E | 5.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.