Daily Sunspot Evaluation
Observation Sheet Sunday, 27 September 1959
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)
- 40
- Relative number (R)
- 130
- Observer
- SG
- Reading
- all checks consistent
- File
- 19590927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 18 | 43E | ||||
| 2 | B – 3 | 14 | 65E | ||||
| 3 | J – 2 | -6 | 36E | ||||
| 4 | A – 2 | -15 | 31W | ||||
| 5 | B – 9 | -9 | 28W | ||||
| 6 | H – 5 | -9 | 36W | ||||
| 7 | A – 1 | 4 | 67W | ||||
| 8 | C – 4 | 27 | 40W | ||||
| 9 | C – 11 | 27 | 30W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.