Daily Sunspot Evaluation
Observation Sheet Sunday, 19 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)
- 16
- Relative number (R)
- 86
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670219.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 4 | 17 | 20E | 24 | |||
| 2 | B – 2 | 24 | 31E | 13 | |||
| 3 | J – 1 | 19 | 31E | 13 | |||
| 4 | J – 1 | 23 | 48E | 4 ⚠ | |||
| 5 | J – 4 | -25 | 06E | 39 | |||
| 6 | A – 1 | 13 | 45W | 83 ⚠ | |||
| 7 | J – 3 | 15 | 14W | 58 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.