Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 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)
- 10
- Number of spots (f)
- 128
- Relative number (R)
- 228
- Observer
- ET
- Reading
- all checks consistent
- File
- 19570604.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 9 | 12 | 41E | ||||
| 2 | A – 2 | -15 | 65E | ||||
| 3 | C – 16 | -18 | 54E | ||||
| 4 | G – 5 | -25 | 41F | ||||
| 5 | A – 3 | -14 | 23E | ||||
| 6 | H – 26 | -17 | 1E | ||||
| 7 | E – 45 | -18 | 26W | ||||
| 8 | H – 6 | -23 | 32W | ||||
| 9 | ? – 4 | -23 | 72W | ||||
| 10 | B – 12 | 9 | 13W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.