Daily Sunspot Evaluation
Observation Sheet Wednesday, 30 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)
- 102
- Relative number (R)
- 232
- Observer
- HM
- Reading
- all checks consistent
- File
- 19720830.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 6 | 12 | 12°E | 17 | |||
| 2 | D – 20 | 14 | 19°E | 10 | |||
| 3 | E – 36 | 18 | 45°E | 344 | |||
| 4 | G – 4 | 16 | 62°E | 327 | |||
| 5 | B – 3 | 6 | 12°E | 17 | |||
| 6 | A – 5 | -25 | 56°E | 333 | |||
| 7 | B – 4 | -4 | 15°E | 16 | |||
| 8 | A – 1 | -8 | 01°W | 30 | |||
| 9 | C – 6 | -6 | 07°W | 36 | |||
| 10 | J – 4 | -18 | 34°W | 63 | |||
| 11 | H – 1 | -14 | 50°W | 79 | |||
| 12 | D – 9 | -7 | 57°W | 86 | |||
| 13 | B – 3 | 18 | 49°W | 78 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.