Daily Sunspot Evaluation
Observation Sheet Tuesday, 29 August 1972
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)
- 13
- Number of spots (f)
- 106
- Relative number (R)
- 236
- Observer
- ED
- Reading
- counts consistent, some coordinates doubtful
- File
- 19720829.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 20 | 17 | 58E | 34 ⚠ | |||
| 2 | G – 6 | 16 | 77E | 329 | |||
| 3 | A – 11 | 13 | 36E | 10 | |||
| 4 | B – 4 | -4 | 32E | 14 | |||
| 5 | ? – 6 | -25 | 74E | 332 | |||
| 6 | H – 13 | -6 | 11E | 35 | |||
| 7 | A – 3 | -12 | 01E | 39 ⚠ | |||
| 8 | C – 12 | -19 | 15W | 61 | |||
| 9 | H – 3 | -15 | 33W | 79 | |||
| 10 | D – 19 | -7 | 39W | 85 | |||
| 11 | A – 1 | -2 | 69W | 115 | |||
| 12 | J – 2 | 9 | 71W | 117 | |||
| 13 | G – 6 | 18 | 30W | 76 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.