Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 September 1999
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)
- 32
- Relative number (R)
- 122
- Observer
- YK
- Reading
- all checks consistent
- File
- 19990908.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 10 | 80W | 161 | 83W | - | |
| 2 | CRO – 3 | 18 | 62W | 143 | 65W | 4 | |
| 3 | AX – 4 | 20 | 38W | 119 | 41W | 1 | |
| 4 | BXO – 2 | 23 | 17W | 98 | 20W | 1.5 | |
| 5 | HA – 6 | 13 | 57E | 24 | 54E | 3 | |
| 6 | HA – 1 | 11 | 74E | 7 | 71E | 1.5 | |
| 7 | DRO – 5 | -30 | 35W | 116 | 38W | 6 | |
| 8 | AX – 2 | -15 | 04W | 85 | 07W | 0.5 | |
| 9 | ? – 6 | -26 | 71E | 10 | 68E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.