Daily Sunspot Evaluation
Observation Sheet Thursday, 19 November 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)
- 40
- Relative number (R)
- 110
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19811119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 1 | 13 | 80W | 298 | 81W | ||
| 2 | HAX – 1 | 19 | 63W | 281 | 64W | 1.5 | |
| 3 | BRI – 9 | 13 | 18E | 200 | 17E | 3.25 | |
| 4 | HAX – 1 | -15 | 80W | 298 | 81W | 1.25 | |
| 5 | DAC – 16 | -16 | 42W | 260 | 43W | 10 | |
| 6 | CAO – 10 | -3 | 08W | 226 | 09W | 6.25 | |
| 7 | AXX – 2 | -8 | 06W | 224 | 07W | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.