Daily Sunspot Evaluation
Observation Sheet Thursday, 5 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)
- 9
- Number of spots (f)
- 28
- Relative number (R)
- 118
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 12 | 16E | ||||
| 2 | ? – 1 | 31 | 64E | ||||
| 3 | C – 5 | 25 | 59E | ||||
| 4 | H – 2 | 20 | 63E | ||||
| 5 | J – 3 | 9 | 34E | ||||
| 6 | A – 2 | -12 | 17E | ||||
| 7 | A – 1 | -12 | 40W | ||||
| 8 | H – 3 | 14 | 28W | ||||
| 9 | D – 6 | 22 | 17W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.