Daily Sunspot Evaluation
Observation Sheet Sunday, 10 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)
- 13
- Relative number (R)
- 33
- Observer
- MB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19970810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 27 | 46E | 317 ⚠ | 45E | - | 58 |
| 2 | CAO – 12 | -20 | 08W | 44 ⚠ | 09W | 8.5 | 57 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.