Daily Sunspot Evaluation
Observation Sheet Friday, 20 January 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)
- 8
- Number of spots (f)
- 21
- Relative number (R)
- 101
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670120.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 13 | 11E | 68 | |||
| 2 | J – 1 | 10 | 03E | 70 ⚠ | |||
| 3 | H – 6 | 17 | 37E | 42 | |||
| 4 | ? – 2 | 20 | 35E | 4 ⚠ | |||
| 5 | J – 1 | 16 | 57E | 22 | |||
| 6 | J – 3 | -24 | 47W | 126 | C-5 | ||
| 7 | J – 2 | -23 | 59W | 138 | |||
| 8 | J – 1 | 23 | 28W | 107 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.