Daily Sunspot Evaluation
Observation Sheet Saturday, 25 February 1967
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)
- 4
- Number of spots (f)
- 81
- Relative number (R)
- 121
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 72 | 24 | 27E | ⚠ | 298E | ||
| 2 | H – 2 | -22 | 13E | 312 | |||
| 3 | C – 6 | 17 | 60W | 25 | |||
| 4 | J – 1 | 20 | 18W | 13 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.