Daily Sunspot Evaluation
Observation Sheet Sunday, 1 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)
- 16
- Number of spots (f)
- 51
- Relative number (R)
- 211
- Observer
- SG
- Reading
- all checks consistent
- File
- 19590201.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 48 | 8E | ||||
| 2 | D – 12 | 23 | 37E | ||||
| 3 | H – 3 | 14 | 25E | ||||
| 4 | ? – 4 | 11 | 76E | ||||
| 5 | A – 1 | -3 | 29E | ||||
| 6 | ? – 1 | -13 | 74E | ||||
| 7 | A – 1 | -11 | 27E | ||||
| 8 | J – 2 | -27 | 56E | ||||
| 9 | J – 1 | -13 | 12E | ||||
| 10 | C – 5 | -12 | 1W | ||||
| 11 | A – 2 | -20 | 5W | ||||
| 12 | A – 3 | -8 | 63W | ||||
| 13 | B – 4 | 4 | 29W | ||||
| 14 | C – 7 | 14 | 12W | ||||
| 15 | A – 1 | 22 | 8W | ||||
| 16 | A – 2 | 16 | 1W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.