Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 February 1969
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)
- 10
- Number of spots (f)
- 101
- Relative number (R)
- 201
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 2 | 87E | 296 | |||
| 2 | D – 28 | -17 | 44E | 339 | |||
| 3 | H – 10 | -22 | 42E | 341 | |||
| 4 | C – 4 | -29 | 63W | 86 | |||
| 5 | A – 1 | -19 | 38W | 61 | |||
| 6 | J – 6 | -14 | 44W | 67 | |||
| 7 | D – 3 | 11 | 71W | 94 | |||
| 8 | A – 1 | 7 | 41W | 64 | |||
| 9 | E – 29 | 13 | 45W | 68 | |||
| 10 | C – 18 | 15 | 25W | 48 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.