Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 December 1979
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)
- 132
- Relative number (R)
- 282
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19791204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 20 | 24E | 286 | 21E | 360 | |
| 2 | J – 1 | 22 | 59E | 251 | 56E | 361 | |
| 3 | H – 7 | -11 | 65E | 245 | 62E | 362 | |
| 4 | H – 1 | -16 | 62E | 248 | 59E | 363 | |
| 5 | H – 14 | -16 | 26E | 284 | 23E | 354 | |
| 6 | A – 3 | -27 | 56E | 254 | 53E | 364 | |
| 7 | C – 3 | -25 | 45E | 265 | 42E | 358 | |
| 8 | D – 33 | -26 | 14E | 296 | 11E | 352 | |
| 9 | H – 3 | -22 | 04W | 314 | 07W | 351 | |
| 10 | D – 37 | -18 | 11W | 321 | 14W | 355 | |
| 11 | D – 21 | -13 | 11W | 321 | 14W | 365 | |
| 12 | J – 1 | -17 | 23W | 333 | 26W | 349 | |
| 13 | J – 1 | -12 | 39W | 349 | 42W | 353 | |
| 14 | A – 4 | -9 | 68W | 18 | 71W | 356 | |
| 15 | J – 1 | -20 | 64W | 14 | 67W | 344 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.