Daily Sunspot Evaluation
Observation Sheet Sunday, 27 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)
- 41
- Relative number (R)
- 111
- Observer
- OG
- Reading
- all checks consistent
- File
- 19811227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BAK – 2 | 14 | 32W | 110 | 34W | 2.5 | |
| 2 | CAO – 10 | 22 | 05W | 83 | 07W | 8 | |
| 3 | AKK – 1 | -25 | 26W | 104 | 28W | - | |
| 4 | CRI – 10 | -21 | 21W | 99 | 23W | 5 | |
| 5 | HAK – 3 | -24 | 00 | 78 | 02W | 4 | |
| 6 | BXI – 11 | -21 | 15E | 63 | 13E | 4 | |
| 7 | CSO – 4 | -12 | 57E | 21 | 55E | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.