Daily Sunspot Evaluation
Observation Sheet Saturday, 6 October 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)
- 9
- Number of spots (f)
- 67
- Relative number (R)
- 157
- Observer
- HE
- Reading
- all checks consistent
- File
- 19901006.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 32 | 00 | 254 | 02W | — | 456 |
| 2 | CSI – 14 | 20 | 04E | 250 | 02E | 8 | 457 |
| 3 | CSI – 11 | 12 | 27E | 227 | 25E | 10.5 | 459 |
| 4 | EKO – 14 | -5 | 63W | 317 | 65W | 10.5 | 453 |
| 5 | AX – 1 | -16 | 32W | 286 | 34W | — | 454 |
| 6 | CAO – 10 | -15 | 01E | 253 | 01W | 5 | 462 |
| 7 | DKO – 11 | -17 | 45E | 209 | 43E | 9 | 463 |
| 8 | BXO – 4 | -25 | 65E | 189 | 63E | 9 | 464 |
| 9 | ? – 1 | -12 | 78E | 176 | 76E | 3 | 466 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.