Daily Sunspot Evaluation
Observation Sheet Monday, 23 February 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)
- 13
- Number of spots (f)
- 62
- Relative number (R)
- 192
- Observer
- KA
- Reading
- all checks consistent
- File
- 19590223.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 21 | 12E | ||||
| 2 | A – 1 | 17 | 17E | ||||
| 3 | C – 7 | 7 | 67E | ||||
| 4 | D – 4 | -34 | 35E | ||||
| 5 | B – 5 | -17 | 20W | ||||
| 6 | A – 1 | 8 | 63W | ||||
| 7 | J – 3 | 8 | 19W | ||||
| 8 | A – 2 | 12 | 49W | ||||
| 9 | C – 2 | 25 | 65W | ||||
| 10 | J – 1 | 29 | 58W | ||||
| 11 | F – 21 | 17 | 26W | ||||
| 12 | H – 3 | 10 | 20W | ||||
| 13 | C – 8 | 22 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.