Daily Sunspot Evaluation
Observation Sheet Sunday, 7 January 1968
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)
- 11
- Number of spots (f)
- 105
- Relative number (R)
- 215
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680107.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 23 | 19 | 15E | 97 | |||
| 2 | E – 31 | 12 | 49E | 63 | |||
| 3 | A – 2 | 9 | 32E | 80 | |||
| 4 | ? – 4 | 20 | 83E | 29 | |||
| 5 | J – 1 | -25 | 57E | 61 ⚠ | |||
| 6 | D – 10 | -27 | 34E | 88 ⚠ | |||
| 7 | F – 13 | -24 | 20E | 92 | |||
| 8 | D – 15 | -20 | 0 | 112 | |||
| 9 | ? – 4 | -29 | 77W | 189 | |||
| 10 | A – 1 | -17 | 26W | 138 | |||
| 11 | A – 1 | -12 | 60W | 172 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.