Daily Sunspot Evaluation
Observation Sheet Wednesday, 3 July 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)
- 16
- Number of spots (f)
- 133
- Relative number (R)
- 293
- Observer
- MB
- Reading
- all checks consistent
- File
- 19910703.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKC – 14 | 6 | 63W | 356 | 65W | 8.5 | 324 |
| 2 | BXI – 4 | 11 | 46W | 339 | 48W | 6 | 339 |
| 3 | HH – 3 | 4 | 40W | 333 | 42W | 3 | 325 |
| 4 | CAI – 28 | 10 | 06E | 287 | 04W | 14 | 331 |
| 5 | HA – 4 | 19 | 14E | 279 | 12E | 2 | 335 |
| 6 | CAO – 7 | 15 | 37E | 256 | 35E | 7 | 342 |
| 7 | DAO – 6 | 21 | 52E | 241 | 50E | 9 | 344 |
| 8 | FAI – 23 | 27 | 54E | 239 | 52E | 18 | 343 |
| 9 | DKC – 4 | 35 | 70E | 223 | 68E | 6 | 345 |
| 10 | ? – 2 | 12 | 82E | 211 | 80E | 5 | 350 |
| 11 | CKI – 13 | -4 | 65W | 358 | 67W | 12 | 327 |
| 12 | BXI – 5 | -33 | 31W | 324 | 33W | 4 | 345 |
| 13 | DAO – 12 | -13 | 13E | 280 | 11E | 9 | 346 |
| 14 | HS – 1 | -13 | 39E | 254 | 37E | 1.5 | 349 |
| 15 | BXI – 6 | -17 | 46E | 247 | 44E | 6 | 348 |
| 16 | ? – 1 | -19 | 78E | 215 | 76E | 2 | 351 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.