Daily Sunspot Evaluation
Observation Sheet Sunday, 5 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)
- 34
- Relative number (R)
- 94
- Observer
- YK
- Reading
- all checks consistent
- File
- 19990905.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 21 | 74W | 194 | 76W | 2 | |
| 2 | HA – 1 | 9 | 66W | 186 | 68W | 1 | |
| 3 | DRO – 7 | 10 | 38W | 158 | 40W | 5 | |
| 4 | DRE – 19 | 18 | 19W | 139 | 21W | 8 | |
| 5 | BXO – 4 | 18 | 04E | 116 | 02E | 3 | |
| 6 | HR – 1 | -25 | 57W | 177 | 59W | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.