Daily Sunspot Evaluation
Observation Sheet Monday, 10 July 1989
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)
- 6
- Number of spots (f)
- 52
- Relative number (R)
- 112
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19890710.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 5 | 24 | 30W | 146 | 8 | ||
| 2 | BRI – 13 | 18 | 17E | 99 | 6 | ||
| 3 | BRO – 4 | -19 | 52W | 168 | 1.5 | ||
| 4 | EAC – 26 | -20 | 16E | 100 | 15 | ||
| 5 | CSO – 3 | -14 | 33E | 83 | 6 | ||
| 6 | HII – 1 | -18 | 40E | 76 | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.