Daily Sunspot Evaluation
Observation Sheet Tuesday, 2 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)
- 8
- Number of spots (f)
- 95
- Relative number (R)
- 175
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19901002.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 3 | 18 | 63W | 11 | 66W | 3.5 | 458 |
| 2 | AR – 2 | 33 | 51E | 257 | 48E | 0.5 | 456 |
| 3 | BRI – 9 | 20 | 60E | 248 | 57E | 7 | 457 |
| 4 | AX – 1 | 11 | 78E | 230 | 75E | - | 459 |
| 5 | EKC – 21 | -7 | 48W | 356 | 51W | 10 | 460 |
| 6 | EKC – 47 | -4 | 07W | 315 | 16W | 10 | 463 |
| 7 | AX – 3 | -15 | 04W | 312 | 07W | 0.5 | 460 |
| 8 | CAO – 9 | -16 | 26E | 282 | 23E | 8 | 454 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.