Daily Sunspot Evaluation
Observation Sheet Sunday, 3 January 1971
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)
- 6
- Number of spots (f)
- 20
- Relative number (R)
- 80
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19710103.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 8 | 4 | 10E | 88 | |||
| 2 | ? – 2 | -15 | 81W | 179 | |||
| 3 | H – 1 | 10 | 69W | 167 | |||
| 4 | G – 4 | 14 | 59W | 157 | |||
| 5 | B – 4 | 19 | 12W | 110 | |||
| 6 | J – 1 | 22 | 01W | 99 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.