Daily Sunspot Evaluation
Observation Sheet Tuesday, 25 June 1991
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)
- 11
- Number of spots (f)
- 70
- Relative number (R)
- 180
- Observer
- TS
- Reading
- all checks consistent
- File
- 19910625.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 5 | 7 | 55W | 93 | 57W | 3.5 | 302 |
| 2 | CAI – 11 | 15 | 46W | 84 | 48W | 11 | 313 |
| 3 | CAI – 5 | 21 | 08W | 46 | 10W | 4.5 | 310 |
| 4 | CKI – 17 | 5 | 45E | 353 | 43E | 8 | 324 |
| 5 | ? – 3 | 2 | 75E | 323 | 73E | 12 | 325 |
| 6 | CAO – 3 | -29 | 63W | 101 | 65W | 8 | 317 |
| 7 | AX – 3 | -25 | 28W | 66 | 30W | 2.5 | 326 |
| 8 | HA – 2 | -17 | 19W | 57 | 21W | 3.5 | 314 |
| 9 | BXI – 5 | -12 | 43E | 355 | 41E | 3 | 322 |
| 10 | BXI – 15 | -8 | 48E | 350 | 46E | 8 | 327 |
| 11 | AX – 1 | -8 | 60E | 338 | 68E | 0.5 | 323 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.