Daily Sunspot Evaluation
Observation Sheet Tuesday, 25 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)
- 8
- Number of spots (f)
- 122
- Relative number (R)
- 202
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19890725.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 29 | 82W | 0 | 85W | 12.5 | 356 |
| 2 | BRI – 12 | 15 | 41W | 319 | 44W | 8 | 359 |
| 3 | HH – 2 | 27 | 11W | 289 | 14W | 3 | 354 |
| 4 | BRI – 13 | 25 | 00 | 272 | 03W | 9.75 | 357 |
| 5 | DAC – 36 | -13 | 44W | 322 | 47W | 9.5 | 357 |
| 6 | CAO – 18 | -32 | 39W | 317 | 42W | 10.5 | 367 |
| 7 | CKO – 24 | -22 | 31W | 309 | 34W | 9 | 352 |
| 8 | CAE – 14 | -18 | 44E | 234 | 41E | 6.5 | 363 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.