Daily Sunspot Evaluation
Observation Sheet Sunday, 31 January 1982
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)
- 15
- Number of spots (f)
- 144
- Relative number (R)
- 294
- Observer
- TÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19820131.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 4 | 21 | 51W | 29 ⚠ | 53W | 2 | 56 |
| 2 | DAC – 17 | 14 | 31W | 4 ⚠ | 33W | 5.5 | 57 |
| 3 | AXX – 1 | 19 | 21W | 35 ⚠ | 23W | 50 | |
| 4 | EKC – 27 | 9 | 08E | 33 ⚠ | 06E | 14 | 48 |
| 5 | DAO – 6 | 9 | 25E | 31 | 23E | 5 | 46 |
| 6 | DAC – 4 | 13 | 34E | 30 ⚠ | 32E | 3.5 | 45 |
| 7 | EKO – 11 | -13 | 26W | 4 ⚠ | 28W | 11.5 | 38 |
| 8 | DAI – 18 | -10 | 04W | 30 ⚠ | 06W | 8.5 | 49 |
| 9 | FKC – 38 | -14 | 14E | 30 ⚠ | 12E | 19 | 47 |
| 10 | BRO – 8 | -17 | 42E | 29 ⚠ | 40E | 5.5 | 44 |
| 11 | HAX – 4 | -20 | 46E | 29 ⚠ | 44E | 2.5 | 43 |
| 12 | ARX – 2 | -14 | 52E | 28 ⚠ | 50E | 1.5 | 42 |
| 13 | HAX – 2 | -17 | 57E | 28 ⚠ | 55E | 1 | 41 |
| 14 | AXX – 1 | -21 | 66E | 27 ⚠ | 64E | 40 | |
| 15 | AXX – 1 | -17 | 70E | 26 ⚠ | 68E | 39 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.