Daily Sunspot Evaluation
Observation Sheet Sunday, 9 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)
- 10
- Number of spots (f)
- 89
- Relative number (R)
- 189
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19890709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 12 | 23 | 14W | 143 | 17W | 5 | 378 |
| 2 | BXI – 15 | 9 | 12W | 141 | 15W | 9 | 379 |
| 3 | CSO – 9 | 18 | 29E | 100 | 26E | 5 | 375 |
| 4 | AX – 2 | 25 | 34E | 95 | 31E | - | 374 |
| 5 | AX – 2 | 22 | 42E | 87 | 39E | 0.5 | 373 |
| 6 | DAO – 11 | -19 | 38W | 167 | 41W | 4 | 372 |
| 7 | AX – 2 | -17 | 34W | 163 | 37W | 0.5 | 371 |
| 8 | EAC – 28 | -11 | 29E | 100 | 26E | 14 | 370 |
| 9 | DSI – 7 | -14 | 47E | 82 | 44E | 7 | 369 |
| 10 | HH – 1 | -18 | 54E | 75 | 51E | 3 | 368 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.