Daily Sunspot Evaluation
Observation Sheet Sunday, 24 September 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)
- 5
- Number of spots (f)
- 59
- Relative number (R)
- 109
- Observer
- HM
- Reading
- all checks consistent
- File
- 19720924.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 6 | 8 | 57E | 5 | |||
| 2 | E – 38 | -5 | 28E | 34 | |||
| 3 | A – 1 | -11 | 26E | 36 | |||
| 4 | H – 13 | -16 | 17W | 79 | |||
| 5 | A – 1 | -11 | 55W | 117 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.