Daily Sunspot Evaluation
Observation Sheet Sunday, 2 July 1961
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)
- 4
- Number of spots (f)
- 21
- Relative number (R)
- 61
- Observer
- SK
- Reading
- all checks consistent
- File
- 19610702.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 2 | 13 | 57E | ||||
| 2 | J – 2 | -14 | 2W | ||||
| 3 | F – 14 | 7 | 51W | ||||
| 4 | B – 3 | 19 | 43W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.