Daily Sunspot Evaluation
Observation Sheet Thursday, 6 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)
- 9
- Number of spots (f)
- 72
- Relative number (R)
- 162
- Observer
- MH
- Reading
- all checks consistent
- File
- 19570606.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 17 | 19E | ||||
| 2 | G – 9 | 11 | 15E | ||||
| 3 | G – 16 | -18 | 28E | ||||
| 4 | G – 2 | -25 | 15E | ||||
| 5 | B – 4 | -23 | 21W | ||||
| 6 | G – 14 | -16 | 25W | ||||
| 7 | J – 2 | -23 | 57W | ||||
| 8 | B – 14 | -17 | 51W | ||||
| 9 | G – 8 | 10 | 41W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.