Daily Sunspot Evaluation
Observation Sheet Thursday, 13 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)
- 6
- Number of spots (f)
- 13
- Relative number (R)
- 73
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830113.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 2 | 78E | 359 | 75E | 6 | 19 |
| 2 | HAX – 1 | -11 | 56W | 133 | 59W | 1.5 | 12 |
| 3 | HSX – 1 | -16 | 73W | 130 ⚠ | 56W | 1 | 18 |
| 4 | HAX – 3 | -5 | 42W | 119 | 45W | 2 | 15 |
| 5 | CSI – 6 | -7 | 21W | 98 | 24W | 5 | 14 |
| 6 | HAX – 1 | -19 | 49E | 28 | 46E | 2 | 16 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.