Daily Sunspot Evaluation
Observation Sheet Saturday, 3 January 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)
- 4
- Number of spots (f)
- 36
- Relative number (R)
- 76
- Observer
- AT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19700103.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 20 | 36E | 198 | |||
| 2 | J – 2 | 9 | 67E | 167 | |||
| 3 | G – 7 | -24 | 54W | 288 | |||
| 4 | E – 24 | 12 | 40W | 244 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.