Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 7
- Number of spots (f)
- 32
- Relative number (R)
- 102
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670215.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 13 | 09E | 84 | |||
| 2 | A – 1 | 18 | 11E | 82 | |||
| 3 | ? – 2 | 17 | 80E | 13 | |||
| 4 | J – 2 | -24 | 53E | 40 | |||
| 5 | ? – 1 | 18 | 80W | 113 ⚠ | |||
| 6 | A – 1 | 18 | 35W | 126 | |||
| 7 | D – 22 | 16 | 16W | 109 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.