Daily Sunspot Evaluation
Observation Sheet Friday, 11 June 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)
- 12
- Number of spots (f)
- 91
- Relative number (R)
- 211
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 19990611.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 21 | 68W | 245 | 70W | - | |
| 2 | EAI – 24 | 29 | 28W | 205 | 30W | 13 | |
| 3 | DAO – 9 | 19 | 27W | 204 | 29W | 9 | |
| 4 | BXO – 6 | 13 | 22W | 199 | 24W | 4 | |
| 5 | HR – 1 | 23 | 01E | 176 | 01W | 0.5 | |
| 6 | BXO – 6 | 25 | 40E | 137 | 38E | 5 | |
| 7 | HS – 2 | -14 | 09W | 186 | 11W | 1 | |
| 8 | CAO – 6 | -19 | 07W | 184 | 09W | ~4.5 | |
| 9 | AX – 2 | -29 | 09W | 186 | 11W | ~2 | |
| 10 | HK – 1 | -20 | 50E | 127 | 48E | ~3 | |
| 11 | ? – 1 | -13 | 79E | 98 | 77E | - | |
| 12 | FAC – 31 | 19 | 11(W) | 188 | 13(W) | 14.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.