Daily Sunspot Evaluation
Observation Sheet Friday, 14 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)
- 8
- Number of spots (f)
- 40
- Relative number (R)
- 120
- Observer
- YÖ
- Reading
- all checks consistent
- File
- 19570614.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 24 | 31 | 5E | ||||
| 2 | J – 3 | -16 | 12E | ||||
| 3 | J – 2 | -22 | 64E | ||||
| 4 | A – 1 | -19 | 49E | ||||
| 5 | A – 1 | -23 | 27E | ||||
| 6 | ? – 1 | -36 | 88E | ||||
| 7 | ? – 1 | -16 | 80W | ||||
| 8 | D – 7 | 11 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.