Daily Sunspot Evaluation
Observation Sheet Monday, 16 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)
- 10
- Number of spots (f)
- 75
- Relative number (R)
- 175
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19811116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 3 | 80W | 338 | 81W | 2 | |
| 2 | DAC – 18 | 19 | 67W | 325 | 68W | 9 | |
| 3 | CRO – 6 | 24 | 59W | 317 | 60W | 6 | |
| 4 | ARX – 1 | 15 | 52W | 310 | 53W | 0.5 | |
| 5 | BRC – 8 | 13 | 40W | 298 | 41W | 4.5 | |
| 6 | HSX – 4 | 18 | 23W | 281 | 24W | 4.5 | |
| 7 | DAC – 8 | -13 | 75W | 333 | 76W | 7 | |
| 8 | CAE – 9 | -14 | 43W | 301 | 44W | 5.5 | |
| 9 | BRO – 7 | -11 | 20W | 278 | 21W | 6 | |
| 10 | DAO – 13 | -14 | 35E | 223 | 34E | 8.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.