Daily Sunspot Evaluation
Observation Sheet Sunday, 14 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)
- 6
- Number of spots (f)
- 49
- Relative number (R)
- 109
- Observer
- AK
- Reading
- all checks consistent
- File
- 19600214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 20 | 11 | 9E | ||||
| 2 | B – 2 | 8 | 37E | ||||
| 3 | C – 4 | -24 | 9E | ||||
| 4 | B – 5 | -20 | 26W | ||||
| 5 | ? – 2 | 17 | 78W | ||||
| 6 | E – 16 | 22 | 31W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.