Daily Sunspot Evaluation
Observation Sheet Monday, 25 August 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)
- 5
- Relative number (R)
- 25
- Observer
- TA
- Reading
- all checks consistent
- File
- 19970825.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 29 | 73E | 106 | 72E | - | 63 |
| 2 | AX – 1 | -23 | 68E | 111 | 67E | 0.5 | 64 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.