Daily Sunspot Evaluation
Observation Sheet Wednesday, 14 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)
- 10
- Number of spots (f)
- 50
- Relative number (R)
- 150
- Observer
- TA
- Reading
- all checks consistent
- File
- 19910814.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 9 | 4 | 07E | 91 | 04E | 2.5 | 432 |
| 2 | HA – 3 | 22 | 52E | 46 | 49E | 3 | 436 |
| 3 | BXI – 4 | 7 | 63E | 35 | 60E | 4.5 | 442 |
| 4 | HA – 1 | -25 | 63W | 161 | 66W | 1 | 423 |
| 5 | CAI – 12 | -12 | 36W | 134 | 39W | 7 | 428 |
| 6 | AX – 1 | -19 | 20W | 118 | 23W | - | 443 |
| 7 | HK – 1 | -24 | 16W | 114 | 19W | 3 | 431 |
| 8 | CAO – 7 | -9 | 54E | 44 | 51E | 10 | 438 |
| 9 | ? – 6 | -16 | 71E | 27 | 68E | 9 | 440 |
| 10 | DKC – 6 | -11 | 72E | 26 | 69E | 10 | 441 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.