Daily Sunspot Evaluation
Observation Sheet Monday, 17 January 1983
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)
- 34
- Relative number (R)
- 134
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830117.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 3 | 4 | 04W | 28 | 06W | 2 | 21 |
| 2 | HAX – 1 | 3 | 19E | 5 | 17E | 5 | 19 |
| 3 | AXX – 3 | 6 | 21E | 3 | 19E | 1 | 26 |
| 4 | HKX – 6 | 8 | 28E | 356 | 26E | 3 | 22 |
| 5 | HSX – 1 | 17 | 51E | 333 | 49E | 2 | 29 |
| 6 | AXX – 3 | 14 | 56E | 328 | 54E | 2 | 36 |
| 7 | HSX – 1 | -8 | 78W | 102 | 80W | 2 | 14 |
| 8 | HAX – 2 | -18 | 05W | 29 | 07W | 2 | 20 |
| 9 | DKI – 13 | -13 | 38E | 351 ⚠ | 31E | 9.5 | 25 |
| 10 | HAX – 1 | -12 | 70E | 314 | 68E | 2.25 | 28 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.