Daily Sunspot Evaluation
Observation Sheet Saturday, 30 July 1960
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)
- 6
- Number of spots (f)
- 44
- Relative number (R)
- 104
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600730.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 14 | 0 | ||||
| 2 | H – 30 | 8 | 2E | ||||
| 3 | A – 1 | 9 | 11E | ||||
| 4 | A – 2 | -16 | 50W | ||||
| 5 | J – 1 | -9 | 41W | ||||
| 6 | C – 4 | 25 | 2W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.