Daily Sunspot Evaluation
Observation Sheet Wednesday, 20 September 2000
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)
- 6
- Number of spots (f)
- 131
- Relative number (R)
- 191
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20000920.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 6 | 63W | 194 | 66W | ||
| 2 | AX – 3 | 11 | 62W | 193 | 65W | ||
| 3 | CAO – 6 | 16 | 57W | 188 | 60W | 4 | |
| 4 | EKI – 19 | 13 | 42E | 89 | 39E | 12.5 | |
| 5 | EKC – 44 | 10 | 57E | 74 | 54E | 18 | |
| 6 | DKC – 58 | -14 | 09E | 122 | 06E | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.