Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 July 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)
- 12
- Relative number (R)
- 32
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19970723.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 8 | 27 | 03E | 254 | 00 | 3 | 50 |
| 2 | AX – 4 | 21 | 72E | 184 | 69E | 5 | 51 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.