Daily Sunspot Evaluation
Observation Sheet Friday, 16 June 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)
- 5
- Number of spots (f)
- 42
- Relative number (R)
- 92
- Observer
- BG
- Reading
- all checks consistent
- File
- 19610616.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | -7 | 61E | ||||
| 2 | E – 14 | -9 | 23WE | ||||
| 3 | A – 1 | -18 | 11E | ||||
| 4 | C – 6 | -12 | 12W | ||||
| 5 | E – 20 | 3 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.