Daily Sunspot Evaluation
Observation Sheet Tuesday, 29 December 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)
- 7
- Number of spots (f)
- 38
- Relative number (R)
- 108
- Observer
- GT
- Reading
- all checks consistent
- File
- 19811229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HXX – 1 | 12 | 64W | 116 | 66W | 2 | |
| 2 | DAI – 9 | 17 | 17E | 35 | 15E | 8 | |
| 3 | BXO – 3 | 4 | 52E | 0 | 50E | 4 | |
| 4 | DAI – 7 | -22 | 48W | 100 | 50W | 6 | |
| 5 | HHI – 10 | -24 | 26W | 78 | 28W | 6 | |
| 6 | AXX – 4 | -21 | 12W | 64 | 14W | 1 | |
| 7 | AXX – 4 | -12 | 27E | 25 | 25E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.