Daily Sunspot Evaluation
Observation Sheet Wednesday, 29 July 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)
- 11
- Number of spots (f)
- 71
- Relative number (R)
- 181
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700729.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 3 | 18 | 05E | 18 | |||
| 2 | A – 4 | 7 | 24E | 359 | |||
| 3 | J – 1 | -16 | 49E | 334 | |||
| 4 | H – 13 | -12 | 23E | 0 | |||
| 5 | E – 19 | 6 | 02W | 25 | |||
| 6 | A – 1 | 0 | 02W | 25 | |||
| 7 | G – 2 | -9 | 25W | 48 | |||
| 8 | E – 10 | 18 | 72W | 95 | |||
| 9 | A – 3 | 19 | 23W | 46 | |||
| 10 | D – 13 | 21 | 20W | 43 | |||
| 11 | G – 2 | 28 | 16W | 39 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.