Daily Sunspot Evaluation
Observation Sheet Sunday, 4 February 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)
- 149
- Relative number (R)
- 259
- Observer
- LT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 4 | 7 | 8E | 36 ⚠ | |||
| 2 | C – 5 | 12 | 32E | 72 | |||
| 3 | ? – 1 | 12 | 85E | 19 | |||
| 4 | E – 28 | -16 | 14E | 30 ⚠ | |||
| 5 | J – 2 | -24 | 19E | 85 | |||
| 6 | D – 25 | -20 | 4W | 108 | |||
| 7 | B – 8 | -14 | 67W | 171 | |||
| 8 | F – 57 | 13 | 59W | 163 | |||
| 9 | A – 1 | 21 | 28W | 132 | |||
| 10 | E – 17 | 12 | 12W | 116 | |||
| 11 | A – 1 | 12 | 17W | 121 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.