Daily Sunspot Evaluation
Observation Sheet Thursday, 5 February 1970
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)
- 14
- Relative number (R)
- 64
- Observer
- TY
- Reading
- all checks consistent
- File
- 19700205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 19 | 74E | 89 | |||
| 2 | A – 1 | -33 | 05W | 168 | |||
| 3 | A – 1 | -18 | 05W | 168 | |||
| 4 | D – 10 | -11 | 27W | 190 | |||
| 5 | ? – 1 | 18 | 72W | 235 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.