Daily Sunspot Evaluation
Observation Sheet Wednesday, 30 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)
- 21
- Relative number (R)
- 91
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19811230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 12 | 76W | 114 | 77W | 2.5 | |
| 2 | DAO – 5 | 18 | 03E | 35 | 02E | 8 | |
| 3 | AXX – 3 | 24 | 49E | 349 | 48E | 2 | |
| 4 | CAI – 4 | -21 | 60W | 98 | 61W | 4 | |
| 5 | BEO – 2 | -18 | 42W | 80 | 43W | 3 | |
| 6 | HEX – 2 | -24 | 41W | 79 | 42W | 2.5 | |
| 7 | BXI – 4 | -20 | 27W | 65 | 28W | 3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.