Daily Sunspot Evaluation
Observation Sheet Monday, 28 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)
- 8
- Number of spots (f)
- 40
- Relative number (R)
- 120
- Observer
- BG
- Reading
- all checks consistent
- File
- 19590928.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 17 | 36E | ||||
| 2 | A – 3 | 13 | 19E | ||||
| 3 | J – 4 | -6 | 22E | ||||
| 4 | A – 5 | -9 | 28E | ||||
| 5 | A – 3 | -5 | 12W | ||||
| 6 | C – 10 | -10 | 44W | ||||
| 7 | H – 2 | -9 | 52W | ||||
| 8 | B – 8 | 27 | 49W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.