Daily Sunspot Evaluation
Observation Sheet Thursday, 10 January 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)
- 61
- Relative number (R)
- 151
- Observer
- MH
- Reading
- all checks consistent
- File
- 19570110.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 6 | |||
| 2 | C – 14 | |||
| 3 | A – 3 | |||
| 4 | E – 23 | |||
| 5 | A – 5 | |||
| 6 | J – 1 | |||
| 7 | J – 1 | |||
| 8 | B – 6 | |||
| 9 | A – 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.