Daily Sunspot Evaluation
Observation Sheet Monday, 12 December 1988
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)
- 12
- Number of spots (f)
- 104
- Relative number (R)
- 224
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19881212.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 8 | 19 | 22W | 29 | 25W | 5.0 | 339 |
| 2 | AX – 2 | 30 | 10E | 357 | 07E | 2.5 | 343 |
| 3 | CRO – 10 | 13 | 25E | 342 | 22E | 7.5 | 344 |
| 4 | AX – 2 | 20 | 30E | 337 | 27E | 1.5 | 345 |
| 5 | CAO – 10 | 32 | 31E | 336 | 28E | 9.5 | 346 |
| 6 | ? – 2 | 27 | 81E | 286 | 78E | - | 347 |
| 7 | BXO – 13 | -15 | 38W | 45 | 41W | 4.5 | 348 |
| 8 | CAO – 10 | -19 | 14W | 21 | 17W | 5.0 | 349 |
| 9 | HS – 5 | -24 | 13W | 20 | 16W | 2.0 | 352 |
| 10 | CSO – 4 | -36 | 09W | 16 | 12W | 4.0 | 341 |
| 11 | HA – 2 | -13 | 34E | 333 | 31E | 1.5 | 349 |
| 12 | FKC – 36 | -32 | 46E | 321 | 43E | 29.0 | 350 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.