Daily Sunspot Evaluation
Observation Sheet Monday, 29 February 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)
- 7
- Number of spots (f)
- 38
- Relative number (R)
- 108
- Observer
- SG
- Reading
- all checks consistent
- File
- 19600229.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 14 | 24 | 8E | ||||
| 2 | A – 2 | 10 | 60E | ||||
| 3 | C – 12 | -12 | 35E | ||||
| 4 | H – 3 | -14 | 50E | ||||
| 5 | A – 2 | -20 | 60W | ||||
| 6 | A – 2 | 6 | 28W | ||||
| 7 | H – 3 | 11 | 22W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.