Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 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)
- 66
- Relative number (R)
- 166
- Observer
- YK
- Reading
- all checks consistent
- File
- 19890726.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRI – 4 | 13 | 57W | 322 | 61W | 4 | 177 |
| 2 | ITH – 1 | 26 | 23W | 288 | 27W | 2.75 | 179 |
| 3 | BXO – 6 | 21 | 14W | 279 | 18W | 10.75 | 181 |
| 4 | AX – 1 | 33 | 09W | 274 | 13W | 0.5 | 183 |
| 5 | DAC – 18 | -13 | 58W | 323 | 52W | 9 | 185 |
| 6 | BXI – 9 | -33 | 51W | 316 | 55W | 11 | 187 |
| 7 | CKE – 11 | -22 | 43W | 308 | 47W | 7.75 | 189 |
| 8 | AX – 1 | -13 | 30W | 295 | 34W | 0.5 | 191 |
| 9 | BRO – 7 | -39 | 08W | 273 | 12W | 4 | 193 |
| 10 | CAE – 8 | -19 | 32E | 233 | 28E | 6.25 | 195 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.