Daily Sunspot Evaluation
Observation Sheet Sunday, 25 February 1968
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)
- 8
- Number of spots (f)
- 85
- Relative number (R)
- 165
- Observer
- SM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 2 | 11 | 1E | 186 | |||
| 2 | E – 25 | 10 | 20E | 147 ⚠ | |||
| 3 | ? – 9 | 13 | 64E | 123 | |||
| 4 | H – 25 | -27 | 36E | 151 | |||
| 5 | C – 8 | -27 | 29W | 216 | |||
| 6 | H – 3 | -22 | 40W | 227 | |||
| 7 | ? – 6 | 14 | 69W | 256 | |||
| 8 | C – 7 | 10 | 33W | 220 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.