Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 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)
- 12
- Number of spots (f)
- 64
- Relative number (R)
- 184
- Observer
- MB
- Reading
- all checks consistent
- File
- 19910626.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 9 | 68W | 93 | 70W | 1.5 | 302 |
| 2 | CAI – 5 | 15 | 60W | 85 | 62W | 9 | 313 |
| 3 | HA – 3 | 23 | 23W | 48 | 25W | 2 | 310 |
| 4 | DKI – 20 | 5 | 34E | 354 | 29E | 9 | 324 |
| 5 | HA – 2 | 3 | 57E | 328 | 55E | 2.5 | 325 |
| 6 | ? – 1 | -28 | 79W | 104 | 81W | 1.5 | 328 |
| 7 | CAO – 3 | -16 | 30W | 55 | 32W | 4.5 | 314 |
| 8 | AX – 2 | -17 | 17E | 8 | 15E | 1.5 | 329 |
| 9 | DAC – 7 | -5 | 22E | 3 | 20E | 5 | 330 |
| 10 | BXI – 4 | -12 | 28E | 357 | 26E | 4 | 322 |
| 11 | BRI – 12 | -7 | 34E | 351 | 32E | 8.5 | 327 |
| 12 | BRO – 3 | -6 | 46E | 339 | 44E | 3.5 | 323 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.