Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 January 1957
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)
- 9
- Number of spots (f)
- 71
- Relative number (R)
- 161
- Observer
- WG
- Reading
- all checks consistent
- File
- 19570101.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 39 | 20 | 20E | ||||
| 2 | A – 3 | 25 | 34E | ||||
| 3 | A – 3 | -16 | 53E | ||||
| 4 | J – 1 | -20 | 69E | ||||
| 5 | G – 2 | -20 | 7E | ||||
| 6 | A – 4 | -12 | 26W | ||||
| 7 | D – 7 | 35 | 28W | ||||
| 8 | B – 11 | 29 | 7W | ||||
| 9 | A – 1 | 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.