Daily Sunspot Evaluation
Observation Sheet Saturday, 5 February 1972
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)
- 5
- Number of spots (f)
- 19
- Relative number (R)
- 69
- Observer
- ED
- Reading
- all checks consistent
- File
- 19720205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | -7 | 50E | 196 | |||
| 2 | C – 6 | -20 | 07W | 253 | |||
| 3 | A – 1 | -13 | 62W | 308 | |||
| 4 | D – 5 | -1 | 31W | 277 | |||
| 5 | G – 6 | 8 | 65W | 311 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.