Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 May 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)
- 7
- Number of spots (f)
- 75
- Relative number (R)
- 145
- Observer
- FY
- Reading
- all checks consistent
- File
- 19570508.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 35 | 13 | 40E | ||||
| 2 | E – 29 | -28 | 31E | ||||
| 3 | B – 5 | -21 | 9E | ||||
| 4 | A – 1 | -16 | 2E | ||||
| 5 | J – 1 | -27 | 54W | ||||
| 6 | J – 3 | -24 | 67W | ||||
| 7 | J – 1 | 14 | 3W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.