Daily Sunspot Evaluation
Observation Sheet Sunday, 25 June 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)
- 14
- Number of spots (f)
- 161
- Relative number (R)
- 301
- Observer
- MB
- Reading
- all checks consistent
- File
- 19890625.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AR – 2 | 22 | 42W | 357 | 46W | 2.5 | 353 |
| 2 | BXO – 4 | 17 | 01W | 316 | 05W | 3.5 | 313 |
| 3 | AR – 2 | 15 | 05E | 310 | 01E | 2.5 | 313 |
| 4 | EKC – 34 | 26 | 14E | 300 | 10E | 13.5 | 303 |
| 5 | AX – 2 | 15 | 27E | 288 | 23E | 0.5 | 283 |
| 6 | BRO – 5 | 26 | 30E | 285 | 26E | 5 | 283 |
| 7 | CAI – 9 | 8 | 35E | 280 | 31E | 6 | 270 |
| 8 | CAO – 5 | 21 | 38E | 277 | 34E | 8 | 270 |
| 9 | AR – 1 | 22 | 48E | 267 | 44E | 10 | 260 |
| 10 | DKI – 6 | -20 | 55W | 10 | 59W | 7 | 250 |
| 11 | HS – 1 | -17 | 21W | 336 | 25W | 2 | 250 |
| 12 | FKC – 58 | -19 | 10E | 305 | 06E | 18.5 | 240 |
| 13 | ESO – 18 | -19 | 29E | 286 | 25E | 12 | 240 |
| 14 | DSF – 14 | -16 | 45E | 270 | 41E | 10 | 230 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.