Daily Sunspot Evaluation
Observation Sheet Saturday, 22 June 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)
- 11
- Number of spots (f)
- 111
- Relative number (R)
- 221
- Observer
- WG
- Reading
- all checks consistent
- File
- 19570622.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 34 | 19 | 2E | ||||
| 2 | D – 8 | 32 | 22E | ||||
| 3 | J – 1 | 21 | 25E | ||||
| 4 | F – 21 | -21 | 38E | ||||
| 5 | F – 29 | -37 | 15W | ||||
| 6 | B – 4 | -15 | 47W | ||||
| 7 | C – 5 | -14 | 37W | ||||
| 8 | A – 1 | 22 | 34W | ||||
| 9 | ? – 2 | 50 | 72W | ||||
| 10 | B – 3 | 23 | 7W | ||||
| 11 | A – 3 | 28 | 7W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.