Daily Sunspot Evaluation
Observation Sheet Sunday, 15 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)
- 15
- Number of spots (f)
- 119
- Relative number (R)
- 269
- Observer
- HM
- Reading
- all checks consistent
- File
- 19811115.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 15 | 3 | 59W | 330 | 61W | 13 | |
| 2 | DKC – 21 | 19 | 52W | 323 | 54W | 11 | |
| 3 | CAI – 12 | 23 | 44W | 315 | 46W | 5 | |
| 4 | HAX – 2 | 14 | 38W | 309 | 40W | 1 | |
| 5 | AXX – 5 | 12 | 26W | 297 | 28W | 35 | |
| 6 | HHX – 10 | 17 | 10W | 281 | 12W | 5 | |
| 7 | AXX – 3 | 18 | 04W | 275 | 06W | ||
| 8 | AXX – 4 | 12 | 08E | 263 | 06E | 15 | |
| 9 | FKC – 20 | -17 | 64W | 335 | 66W | 11.5 | |
| 10 | AXX – 1 | -14 | 51W | 322 | 53W | ||
| 11 | AXX – 4 | -15 | 30W | 301 | 32W | 3 | |
| 12 | AXX – 4 | -12 | 04W | 275 | 06W | 2 | |
| 13 | DKI – 16 | -4 | 50E | 221 | 48E | 8 | |
| 14 | AXX – 1 | -20 | 54E | 217 | 52E | ||
| 15 | AXX – 1 | -7 | 64E | 207 | 62E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.