Daily Sunspot Evaluation
Observation Sheet Thursday, 8 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)
- 20
- Number of spots (f)
- 172
- Relative number (R)
- 372
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590108.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 18 | 4E | ||||
| 2 | ? – 1 | 26 | 74E | ||||
| 3 | A – 1 | 22 | 68E | ||||
| 4 | F – 42 | 12 | 36E | ||||
| 5 | B – 9 | -4 | 21E | ||||
| 6 | D – 12 | -14 | 17E | ||||
| 7 | B – 5 | -25 | 11E | ||||
| 8 | A – 2 | -11 | 3W | ||||
| 9 | J – 2 | -11 | 10W | ||||
| 10 | H – 4 | -7 | 8W | ||||
| 11 | E – 20 | -18 | 22W | ||||
| 12 | A – 1 | -16 | 22W | ||||
| 13 | D – 2 | 3 | 62W | ||||
| 14 | B – 4 | 12 | 48W | ||||
| 15 | B – 11 | 20 | 56W | ||||
| 16 | E – 20 | 16 | 13W | ||||
| 17 | J – 3 | 11 | 7W | ||||
| 18 | C – 27 | 22 | 14W | ||||
| 19 | J – 3 | 32 | 16W | ||||
| 20 | J – 1 | 14 | 16W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.