Daily Sunspot Evaluation
Observation Sheet Saturday, 29 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)
- 45
- Relative number (R)
- 155
- Observer
- YÖ
- Reading
- all checks consistent
- File
- 19570629.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 12 | 12 | 7E | ||||
| 2 | J – 1 | 12 | 65E | ||||
| 3 | ? – 1 | -17 | 85E | ||||
| 4 | ? – 3 | -30 | 75E | ||||
| 5 | B – 2 | -22 | 25E | ||||
| 6 | J – 1 | -14 | 22E | ||||
| 7 | H – 1 | -12 | 33E | ||||
| 8 | C – 5 | -10 | 42E | ||||
| 9 | J – 3 | -15 | 55E | ||||
| 10 | F – 15 | -21 | 55W | ||||
| 11 | J – 1 | 22 | 69W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.