Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 September 1997
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)
- 2
- Number of spots (f)
- 28
- Relative number (R)
- 48
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19970924.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 24 | -29 | 20E | 124 | 17E | 10.5 | 76 |
| 2 | HA – 4 | -22 | 41E | 103 | 38E | 1 | 77 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.