Daily Sunspot Evaluation
Observation Sheet Tuesday, 14 January 1958
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)
- 17
- Number of spots (f)
- 144
- Relative number (R)
- 314
- Observer
- AK
- Reading
- all checks consistent
- File
- 19580114.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 29 | 10E | ||||
| 2 | B – 3 | 16 | 15E | ||||
| 3 | A – 2 | 18 | 31E | ||||
| 4 | A – 2 | 22 | 61E | ||||
| 5 | E – 16 | 14 | 42E | ||||
| 6 | ? – 1 | 21 | 85E | ||||
| 7 | E – 11 | -6 | 24E | ||||
| 8 | C – 10 | -11 | 34E | ||||
| 9 | A – 3 | -16 | 10E | ||||
| 10 | H – 3 | -22 | 12E | ||||
| 11 | B – 5 | -22 | 10W | ||||
| 12 | C – 5 | -29 | 53W | ||||
| 13 | C – 9 | -18 | 34W | ||||
| 14 | A – 2 | -17 | 55W | ||||
| 15 | E – 31 | -12 | 39W | ||||
| 16 | C – 3 | 25 | 22W | ||||
| 17 | E – 35 | 24 | 6W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.