Daily Sunspot Evaluation
Observation Sheet Tuesday, 29 September 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)
- 7
- Number of spots (f)
- 63
- Relative number (R)
- 133
- Observer
- FA
- Reading
- all checks consistent
- File
- 19700929.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 24 | 17E | 268 | |||
| 2 | D – 12 | 16 | 41E | 244 | |||
| 3 | A – 5 | -9 | 14E | 271 | |||
| 4 | G – 10 | -8 | 01E | 284 | |||
| 5 | E – 18 | 13 | 40W | 325 | |||
| 6 | D – 12 | 23 | 38W | 323 | |||
| 7 | G – 5 | 18 | 05W | 290 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.