Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 August 1990
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)
- 64
- Relative number (R)
- 164
- Observer
- TS
- Reading
- all checks consistent
- File
- 19900808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 20 | 62W | 17 | 65W | 3 | 355 |
| 2 | AX – 2 | 31 | 62W | 17 | 65W | 2 | 355 |
| 3 | HK – 11 | 16 | 17W | 332 | 20W | 6 | 340 |
| 4 | DSO – 4 | 23 | 17W | 332 | 20W | 5.5 | 338 |
| 5 | CAI – 12 | 22 | 00 | 315 | 03W | 6.5 | 344 |
| 6 | ? – 8 | 13 | 80E | 235 | 77E | 10 | 348 |
| 7 | DAI – 16 | -18 | 34W | 349 | 37W | 8 | 349 |
| 8 | BRI – 6 | -23 | 25W | 340 | 28W | 5 | 353 |
| 9 | AX – 1 | -12 | 07E | 308 | 04E | - | 350 |
| 10 | AR – 2 | -13 | 59E | 256 | 56E | 2 | 350 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.