Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 August 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)
- 14
- Number of spots (f)
- 63
- Relative number (R)
- 203
- Observer
- HE
- Reading
- all checks consistent
- File
- 19910827.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 5 | 2 | 70W | 356 | 73W | 4 | 409 |
| 2 | HA – 4 | 11 | 70W | 356 | 73W | 3 | 444 |
| 3 | AR – 1 | 16 | 58W | 344 | 61W | 0.5 | 456 |
| 4 | AX – 1 | 1 | 56W | 342 | 59W | - | 454 |
| 5 | CAO – 2 | 10 | 52W | 338 | 55W | 6 | 455 |
| 6 | AX – 1 | 8 | 45W | 331 | 48W | - | 463 |
| 7 | CAI – 8 | 5 | 09E | 277 | 06E | 6.5 | 468 |
| 8 | FKC – 20 | 24 | 47E | 239 | 44E | 15.5 | 469 |
| 9 | AX – 1 | -28 | 68W | 354 | 71W | - | 451 |
| 10 | HS – 1 | -9 | 21E | 265 | 18E | 1.5 | 467 |
| 11 | CAO – 10 | -13 | 31E | 255 | 28E | 6.5 | 472 |
| 12 | HA – 1 | -17 | 37E | 249 | 34E | 0 | 470 |
| 13 | BRI – 6 | -11 | 43E | 243 | 40E | 5.5 | 475 |
| 14 | ? – 2 | -20 | 77E | 209 | 74E | 6 | 477 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.