Daily Sunspot Evaluation
Observation Sheet Thursday, 15 January 1959
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)
- 11
- Number of spots (f)
- 83
- Relative number (R)
- 193
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590115.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 15 | 22 | 5E | ||||
| 2 | D – 7 | 18 | 8E | ||||
| 3 | A – 1 | 20 | 63E | ||||
| 4 | ? – 5 | 17 | 77E | ||||
| 5 | ? – 5 | 12 | 78E | ||||
| 6 | B – 7 | -4 | 9E | ||||
| 7 | A – 1 | -7 | 46E | ||||
| 8 | A – 3 | -6 | 32W | ||||
| 9 | F – 28 | 11 | 56W | ||||
| 10 | D – 10 | 25 | 21W | ||||
| 11 | A – 1 | 30 | 22W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.