Daily Sunspot Evaluation
Observation Sheet Monday, 6 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)
- 6
- Number of spots (f)
- 38
- Relative number (R)
- 98
- Observer
- TA
- Reading
- all checks consistent
- File
- 19990906.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 21 | 85W | 192 | 88W | - | |
| 2 | ? – 1 | 10 | 80W | 187 | 83W | - | |
| 3 | DRO – 8 | 10 | 51W | 158 | 54W | 7 | |
| 4 | DRI – 17 | 17 | 31W | 138 | 34W | ~10 | |
| 5 | CRO – 10 | 18 | 08W | 115 | 11W | 5 | |
| 6 | ? – 1 | 12 | 85E | 22 | 82E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.