Daily Sunspot Evaluation
Observation Sheet Wednesday, 27 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)
- 8
- Number of spots (f)
- 29
- Relative number (R)
- 109
- Observer
- SG
- Reading
- all checks consistent
- File
- 19600727.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 27 | 35E | ||||
| 2 | H – 16 | 9 | 43E | ||||
| 3 | J – 1 | -10 | 2W | ||||
| 4 | A – 1 | -6 | 13W | ||||
| 5 | B – 2 | 2 | 8W | ||||
| 6 | B – 5 | -11 | 60W | ||||
| 7 | A – 1 | 9 | 47W | ||||
| 8 | J – 1 | 24 | 60W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.