Daily Sunspot Evaluation
Observation Sheet Sunday, 19 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)
- 22
- Number of spots (f)
- 65
- Relative number (R)
- 285
- Observer
- WG
- Reading
- all checks consistent
- File
- 19580119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 18 | 9E | ||||
| 2 | A – 2 | 38 | 19E | ||||
| 3 | H – 2 | 22 | 16E | ||||
| 4 | B – 7 | 32 | 29E | ||||
| 5 | A – 2 | 24 | 30E | ||||
| 6 | C – 3 | 23 | 37E | ||||
| 7 | C – 6 | 27 | 45E | ||||
| 8 | C – 4 | 29 | 59E | ||||
| 9 | J – 1 | 20 | 47E | ||||
| 10 | A – 1 | 5 | 31E | ||||
| 11 | B – 6 | -12 | 44E | ||||
| 12 | A – 1 | -17 | 31E | ||||
| 13 | J – 1 | -20 | 52E | ||||
| 14 | A – 1 | -24 | 3E | ||||
| 15 | J – 2 | -23 | 53W | ||||
| 16 | J – 1 | -20 | 83W | ||||
| 17 | A – 1 | -12 | 30W | ||||
| 18 | C – 6 | -8 | 45W | ||||
| 19 | A – 2 | -4 | 41W | ||||
| 20 | A – 1 | 12 | 56W | ||||
| 21 | G – 12 | 13 | 27W | ||||
| 22 | J – 2 | 29 | 56W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.