Daily Sunspot Evaluation
Observation Sheet Sunday, 12 March 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)
- 65
- Relative number (R)
- 135
- Observer
- LT
- Reading
- all checks consistent
- File
- 19670312.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 28 | 40°E | 87 | |||
| 2 | C – 5 | 20 | 43°E | 84 | |||
| 3 | ? – 1 | -15 | 88°E | 39 | |||
| 4 | B – 2 | -25 | 22°E | 105 | |||
| 5 | A – 1 | -20 | 17°W | 144 | |||
| 6 | C – 45 | -19 | 34°W | 161 | |||
| 7 | C – 9 | 26 | 44°W | 171 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.