Daily Sunspot Evaluation
Observation Sheet Tuesday, 24 August 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)
- 4
- Number of spots (f)
- 82
- Relative number (R)
- 122
- Observer
- HM
- Reading
- all checks consistent
- File
- 19710824.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 5 | -5 | 31E | 232 | |||
| 2 | F – 72 | -11 | 06W | 269 | |||
| 3 | H – 1 | 13 | 55W | 318 | |||
| 4 | B – 4 | 13 | 25W | 288 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.