Daily Sunspot Evaluation
Observation Sheet Monday, 20 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)
- 25
- Relative number (R)
- 95
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670220.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 12 | 08E | 23 | |||
| 2 | J – 1 | 19 | 19E | 12 | |||
| 3 | J – 10 | 24 | 29E | 3 | |||
| 4 | J – 1 | -22 | 89E | 203 ⚠ | |||
| 5 | J – 5 | -24 | 05W | 36 | |||
| 6 | A – 1 | 13 | 58W | 89 | |||
| 7 | K – 4 | 15 | 27W | 55 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.