Daily Sunspot Evaluation
Observation Sheet Sunday, 14 December 1980
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)
- 162
- Relative number (R)
- 312
- Observer
- OG
- Reading
- all checks consistent
- File
- 19801214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 5 | 9 | 26W | 51 | 28W | 3 | |
| 2 | EKI – 40 | 14 | 21W | 48 | 23W | 12 | |
| 3 | AXX – 2 | 14 | 34E | 353 | 32E | 0.5 | |
| 4 | AXX – 4 | 18 | 36E | 351 | 34E | 2.5 | |
| 5 | EKI – 35 | 7 | 47E | 340 | 45E | 10.5 | |
| 6 | EAI – 29 | 15 | 54E | 333 | 52E | 12 | |
| 7 | AXX – 1 | 10 | 65E | 322 | 63E | - | |
| 8 | HXX – 4 | 8 | 67E | 318 | 67E | - | |
| 9 | CKI – 8 | -12 | 46W | 73 | 48W | 8.5 | |
| 10 | AXX – 1 | -7 | 44W | 71 | 46W | - | |
| 11 | AXX – 3 | -11 | 16W | 43 | 18W | 1.5 | |
| 12 | AXX – 3 | -14 | 16W | 43 | 18W | 2 | |
| 13 | BXE – 10 | -17 | 16W | 43 | 18W | 7.5 | |
| 14 | AXE – 7 | -16 | 37E | 350 | 35E | 4 | |
| 15 | DLI – 10 | -8 | 60E | 327 | 58E | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.