Daily Sunspot Evaluation
Observation Sheet Sunday, 14 February 1971
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)
- 5
- Number of spots (f)
- 32
- Relative number (R)
- 82
- Observer
- MÖ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19710214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 2 | 18 | 47E | 213 ⚠ | |||
| 2 | J – 1 | -13 | 68E | 198 | |||
| 3 | C – 12 | 14 | 68W | 334 | |||
| 4 | A – 1 | 18 | 31W | 297 | |||
| 5 | C – 16 | 14 | 01W | 267 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.